Updated on 2024/10/30

Information

 

写真a

 
TAKADA AKIHIKO
 
Organization
Center of Environment and Safety Professor
Office for the Promotion of Safety and Health (Concurrent)
Title
Professor
Tel
0928022591
Profile
化学物質に関連する安全衛生管理及び環境保全に関する業務を行う。化学物質取扱の指導、再生水処理施設や排水の水質測定、化学物質管理支援システムの運用、作業環境測定、水質管理、環境保全や講習・見学会の実施、環境報告書の編集、化学物質リスクアセスメント実施の啓蒙・システムの管理を行う。 天然由来物質を利用した、環境調和材料・環境保全材料の新規開発、及び、それに必要な高分子基礎科学の確立に関わる研究を行う。
External link

Degree

  • Ph.D

Research History

  • 大阪市立大学生活科学部 助手 平成4年10月〜平成7年3月   

Research Interests・Research Keywords

  • Research theme: Materialization of hardly soluble natural substances using ionic liquids

    Keyword: ionic liquid, solution structure, dyamical structure

    Research period: 2020.4

  • Research theme: Occupational hygiene engineering study on situation and prevention for exposure of volatile organic compounds and dusts

    Keyword: Volatile Organic Compounds(VOC), Dust hazard, Exposure, Occupational hygiene engineering

    Research period: 2017.4 - 2022.6

  • Research theme: Occupational safety and hygiene management on chemical compounds

    Keyword: safety and hygiene, occupational hygiene management, chemical compounds

    Research period: 2016.4 - 2024.5

  • Research theme: Structure and Properties of Ionic Liquids

    Keyword: ionic liquid, solution structure, dyamical structure

    Research period: 2005.4 - 2021.3

  • Research theme: Natural polymer materials

    Keyword: cellulose, polysaccharides, proteins

    Research period: 1995.4

  • Research theme: Structure and Dynamics of associating polymers

    Keyword: associating polymers, polymer structure, polymer science

    Research period: 1994.4

Papers

  • Preparation of cellulosic soft and composite materials using ionic liquid media and ion gels

    Takada, A; Kadokawa, J

    CELLULOSE   29 ( 5 )   2745 - 2754   2022.3   ISSN:0969-0239 eISSN:1572-882X

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    Ionic liquids (ILs) are powerful media for the modification and functionalization of cellulose. This review article discusses the preparation of cellulosic soft and composite materials through the dissolution and gelation of cellulose with ILs. Based on the fact that the IL, 1-butyl-3-methylimidazolium chloride (BMIMCl) forms a cellulosic ion gel, the gel formation process has been employed to prepare a variety of cellulosic materials, of which the following are examples. (1) The gel is converted into a thermoplastic composite film. (2) The cellulose/BMIMCl composite film is reinforced with self-assembled chitin nanofibers. (3) Solutions of cellulose in BMIMCl are converted into hydrogels, organogels, or organic solutions. (4) Binary ion gels of cellulose with other natural polysaccharides, such as starch, chitin, and hydrocolloid polysaccharides, are fabricated using BMIMCl and other ILs. (5) The binary ion gels are converted into composite materials, such as films and fibers.

    DOI: 10.1007/s10570-021-04215-9

    Web of Science

    Scopus

  • Effect of heat treatment on conformational and structural properties of sugar beet pectin Reviewed International journal

    Afsana M. Raka, A. Takada, K. Saadat Hossain

    Carbohydrate Polymer Technologies and Applications   2   100149   2021.12

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    DOI: https://doi.org/10.1016/j.carpta.2021.100149

  • Preparation and characterization of an imogolite/chitosan hybrid with pyridoxal-5'-phosphate as an interfacial modifier Reviewed International journal

    Masaru Mukai, Akihiko Takada, Ayumi Hamada, Tomoko Kajiwara and Atsushi Takahara,

    RSC Advances   11 ( 9 )   2021.11

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    DOI: 10.1039/d1ra04774d

  • ノッチを導入したナイロン12フィルムの一軸伸長過程における分子凝集構造評価 Reviewed

    高山暢久・高田晃彦・小椎尾 謙・高原 淳

    日本ゴム協会誌   94 ( 9 )   293 - 298   2021.9

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    Molecular Aggregation Structure of Notched Nylon 12 Film During Uniaxial Elongation

  • Preparation of an (inorganic/organic) hybrid hydrogel from a peptide oligomer and a tubular aluminosilicate nanofiber Reviewed International journal

    Masaru Mukai, Mari Takahara, Akihiko Takada, Atsushi Takahara

    RSC Advances   11 ( 9 )   4901 - 4905   2021.6

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    DOI: 10.1039/d0ra09514a

  • Structure and Properties of Hybrid Film Fabricated by Spin-Assisted Layer-by-Layer Assembly of Sacran and Imogolite Nanotubes Reviewed

    Linlin Li, Akihiko Takada, Wei Ma, Shigenori Fujikawa, Miho Ariyoshi, Kosuke Igata, Maiko Okajima, Tatsuo Kaneko, Atsushi Takahara

    Langmuir   36 ( 7 )   1718 - 1726   2020.2

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    A free-standing (biomacomolecule/synthetic inorganic nanotubes) hybrid film was fabricated through an alternative layer-by-layer (LBL) assembly of sacran and imogolite nanotubes. Sacran is a natural polysaccharide extracted from the cyanobacterium Aphanothece sacrum, while imogolite is a natural tubular aluminosilicate clay found in volcano ash. The hybrid film thickness increased linearly with the number of the bilayers, because of the interaction between the negatively charged surface of sacran and the positively charged surface of imogolite. UV-vis spectroscopy indicated that the LBL film exhibited good transparency. The surface morphology of the LBL film was smooth in the micrometer scale; many imogolite nanotubes were adsorbed onto the sacran layer, while no imogolite clusters were observed. Furthermore, the structure, stability, gas permeability, and mechanical properties of the LBL films were investigated.

    DOI: 10.1021/acs.langmuir.9b03626

  • Ionic liquid induces flexibility and thermoplasticity in cellulose film Reviewed

    Muhammad Abdul Haq, Yasuhiro Habu, Kazuya Yamamoto, Akihiko Takada, Jun ichi Kadokawa

    Carbohydrate Polymers   223   1 - 6   2019.11

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    It is still challenging to melt-process cellulose. In this paper, we proposed a method for the formation of thermally processable flexible cellulose films via gelation from its solution in ionic liquid (1-butyl-3-methylimidazolium chloride; BMIMCl). Cotton, as a source of cellulose, was dissolved (5 wt%) in BMIMCl and subsequently placed in different amounts of water. The obtained ion gels were dried at 60 °C for 24 h; during drying process, water was removed while BMIMCl was retained. It was found that the amount of retained BMIMCl had a critical role in determining the mechanical properties of the films. It was suspected that the processing conditions altered the degree of crystallinity of cellulose in the films as evidenced by X-ray diffraction measurement. The ionic liquid, i.e., BMIMCl induced the plasticity into the films, so that thermal processability to different shapes became possible.

    DOI: 10.1016/j.carbpol.2019.115058

  • Organic-Inorganic Hybrid Films Fabricated from Cellulose Fibers and Imogolite Nanotubes Reviewed

    Linlin Li, Wei Ma, Akihiko Takada, Nobuhisa Takayama, Atsushi Takahara

    Biomacromolecules   20 ( 9 )   3566 - 3574   2019.9

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    Owing to the increasing environmental awareness, nanocellulose/natural clay composites with improved mechanical performance have attracted growing interest due to their eco-friendly properties. In this study, hybrid films composed of cellulose fibers (CFs) and imogolite nanotubes (natural aluminosilicate nanotubes) were fabricated. We mainly studied the structure, density, and properties of the hybrid materials. Specifically, the hybrid materials were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), a rheological test, and wide-angle X-ray diffraction (WAXD). The mechanical properties of the hybrid materials were measured by a tensile test, which demonstrated that the mechanical properties of the hybrid films were considerably improved by the addition of imogolite up to 1 wt %; meanwhile, the thermal-mechanical properties of the hybrid film were also enhanced.

    DOI: 10.1021/acs.biomac.9b00881

  • Inducing the crystallization in cotton cellulose ion gel films for enhanced mechanical properties Invited Reviewed International journal

    Muhammad Abdul Haq, Yasuhiro Habu, Kazuya Yamamoto, Akihiko Takada, Jun Ichi Kadokawa

    Fibers and Textiles for Value Creation in Connected Industries (Proc. 1st Fiber Society 2018 Spring Conference)   2018.1

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  • Application of ionic liquid on natural polymer science and visualization of non-Newtonian flows Reviewed

    Akihiko Takada

    Sen'i Gakkaishi   73 ( 5 )   201   2017.10

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  • 九州大学における化学物質リスクアセスメントの構築 Reviewed

    高田晃彦・黒木孝一

    労働衛生工学   56   40 - 40   2017.6

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  • 九州大学(筑紫地区等)における化学物質リスクアセスメントの実施方法 Invited

    高田晃彦・黒木孝一

    環境   32   41 - 45   2017.3

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  • セルロースのイオン液体への溶解 Invited Reviewed

    高田晃彦・門川純一

    Cellulose Communicatoin   23   244 - 262   2016.10

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  • Fabrication and characterization of polysaccharide ion gels with ionic liquids and their further conversion into value-added sustainable materials Reviewed

    Akihiko Takada, Jun Ichi Kadokawa

    Biomolecules   5 ( 1 )   244 - 262   2015.3

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    A review of the fabrication of polysaccharide ion gels with ionic liquids is presented. From various polysaccharides, the corresponding ion gels were fabricated through the dissolution with ionic liquids. As ionic liquids, in the most cases, 1-butyl-3-methylimidazolium chloride has been used, whereas 1-allyl-3methylimidazolium acetate was specifically used for chitin. The resulting ion gels have been characterized by suitable analytical measurements. Characterization of a pregel state by viscoelastic measurement provided the molecular weight information. Furthermore, the polysaccharide ion gels have been converted into value-added sustainable materials by appropriate procedures, such as exchange with other disperse media and regeneration.

    DOI: 10.3390/biom5010244

  • A Rubber Elastic Low-molecular-weight Organogel Reviewed

    Michihiro Shirakawa, Norifumi Fujita, Akihiko Takada, Seiji Shinkai

    Chemistry Letters   43 ( 8 )   1330 - 1332   2014.8

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  • Intrinsic Viscosiry of Pullulan in Ionic Liquid Solutions Studied by Rheometry Reviewed

    Akihiko Takada, Yoshiaki Takahashi, Hu Hao

    Nihon Reoroji Gakkaishi   42 ( 3 )   191 - 196   2014.6

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  • Intrinsic viscosity of pullulan in ionic liquid solutions studied by rheometry Reviewed

    Hao Hu, Akihiko Takada, Yoshiaki Takahashi

    Nihon Reoroji Gakkaishi   42 ( 3 )   191 - 196   2014.6

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    Intrinsic viscosity [η] of nine pullulan samples with different molecular weights and narrow molecular weight distributions are obtained in 1-butyl-3-methylimidazolium chloride (BmimCl) and 1-ethyl-3-methylimidazolium acetate (EmimAc) from the Newtonian viscosities measured by oscillatory and steady shear flow in conventional rheometer for dilute solutions. For low molecular weight Mw samples, [η] in BmimCl and EmimAc almost coincide with that in aqueous solutions compared at the same Mw. The data at Mw < 30 kg/mol can be represented by Mw 0.5 dependence. The excluded volume effects observed in BmimCl and EmimAc at higher Mw are somewhat stronger than in aqueous solutions. Mark-Houwink-Sakurada equations for pullulan in BmimCl and EmimAc are determined in 20 kg/mol < Mw < 100 kg/mol. It is conclude that measurement of [η] by rheometer is a promising method for characterization of polymers in ionic liquids.

    DOI: 10.1678/rheology.42.191

  • Elastic Modulus of the Gel mad from interpenetrating Polymer Networks in Phase Separated State Reviewed

    Akihiko Takada, Yoshiaki Takahashi, Zhe Xu

    Evergreen   1 ( 1 )   1 - 5   2014.3

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  • Thermo-reversible solid-like and liquid-like behaviors of carboxyl-terminated telechelic poly(ethylene-butylene) neutralized by octadecylamine Reviewed

    Akihiko Takada, Koji Saeki, Shoichi Murata, Yukihiro Motoyama, Atsushi Takano, Hiroko Yamamoto, Yoshiaki Takahashi

    Nihon Reoroji Gakkaishi   42 ( 1 )   33 - 38   2014.3

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    Solid-like and liquid-like viscoelastic behaviors at low and high temperature, T, respectively, observed for carboxylterminated telechelic poly(ethyrene-butylene) (CTPEB) neutralized with octadecylamine ODA prepared by melt mixing are studied in relation with the structure examined by XRD, FT-IR, DSC and small angle neutron scattering. When the mole ratio of -NH2 and -COOH, NH2/COOH in CTPEB/ODA is 1.4 or higher, CTPEB/ODA was solid-like at 298K, while it was liquid-like having almost the same viscosity as CTPEB at 343K. The network structure formed at low T was easily fractured by small strain and cannot be reformed at low T. However, when the sample is annealed at 353K, cooled and kept for a few hours at T < 300K, the solid-like behavior is reproduced. It was concluded that the network formation at low T and its disappearance at high T for CTPEB/ODA is caused by non-crystalline association/ dissociation of C18 residues in ODA connected to CTPEB by ionic bond (NH3+COO-). Due to the small Mw of CTPEB, only longer chains (~ 1/3 of total chains) connected to ODA aggregates form network structure and sustain the constant G' in this system at low T.

    DOI: 10.1678/rheology.42.33

  • A study of Density for Pullulan/Ionic Liquid Solutions Reviewed

    Hu Hao, Akihiko Takada, Yoshiaki Takahashi

    Evergreen   1 ( 1 )   14 - 19   2014.3

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  • A rubber elastic low-molecular-weight organogel Reviewed

    Michihiro Shirakawa, Norifumi Fujita, Akihiko Takada, Seiji Shinkai

    Chemistry Letters   43 ( 8 )   1330 - 1332   2014.1

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    A low-molecular-weight gel prepared from a Cu complex of a protoporphyrin IX derivative exhibits an unusual elastic behavior as revealed by rheological studies. It possesses rubber elasticity despite the formation of LMOG by noncovalent molecular stacking. This is due to the feature of the present system that the gel fibers behave similarly to covalent polymers without bundling.

    DOI: 10.1246/cl.140278

  • Elastic modulus of the gel made from interpenetrating polymer networks in phase separated state Reviewed

    Zhe Xu, Yoshiaki Takahashi, Akihiko Takada

    Evergreen   1 ( 1 )   1 - 5   2014.1

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    Interpenetrated polymer network (IPN) of gelatin (Git} and sodium polyalginate (Alg) is studied to prepare Alg gel, which is expected to be more uniform than that prepared directly at high added salt (NaCl) concentrations, Cs. The mixed solution and IPNs are homogeneous at lower Cs. It was found that the mixed solution get phase separated around Cs =0.35M. The gels made from the phase separated solution were also investigated. The roughness of Alg gels prepared via IPN and directly at higher Cs is almost the same. It can be summarized that the phase separation was brought by higher Cs and it is not suitable to prepare uniform Alg gels with high.er Cs. It was pointed out that the Alg gels prepared with lower Cs via IPN shows narrower elastic modulus distribution than the higher ones.

    DOI: 10.5109/1440968

  • A study of density for pullulan/ionic liquid solutions Reviewed

    Hao Hu, Akihiko Takada, Yoshiaki Takahashi

    Evergreen   1 ( 1 )   14 - 19   2014.1

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    Empirical relationships were obtained at temperatures 10-80 °C between density ρ and mass concentration C (wt%) of pullulan, which was used as a standard polymer in aqueous solutions containing two representative ionic liquids, l-butyl-3-methylimidamlium chloride and 1-ethyl-3-methylimidaolimn acetate. Water content effect on ρ was also examined. Pullulan was successfully dissolved into these ionic liquids without degradation, confirmed by the recovered samples. This indicates that pullulan is a suitable standard for ionic liquid soluble polymers. The empirical relationships provide easy conversion of C to concentration c (g/cm.3), which is essential for systematic studies of properties of pullulan in ionic liquids.

    DOI: 10.5109/1440970

  • Stereochemistry-dependent, mechanoresponsive supramolecular host assemblies for fullerenes A guest-induced enhancement of thixotropy Reviewed

    Arnab Dawn, Tomohiro Shiraki, Hiroshi Ichikawa, Akihiko Takada, Yoshiaki Takahashi, Youichi Tsuchiya, Le Thi Ngoc Lien, Seiji Shinkai

    Journal of the American Chemical Society   134 ( 4 )   2161 - 2171   2012.2

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    Self-assembly behaviors of a series of systems (G1, G2, and G3) possessing same organic building blocks based on a substituted anthracene have been investigated in decalin. G2 and G3 are dominated by head-to-tail (ht) and head-to-head (hh) type dimers of G1, respectively. G1 gives a thermoresponsive gel that behaves ideally, showing frequency-independent elastic and viscous moduli. Interestingly, G2 produces a thixotropic gel that shows the signature of structural relaxation, signifying the dynamic nature of the system. In contrast, G3 remains fluidlike. As investigated by scanning electron microscopy (SEM), in the assembly process of G2, first disklike nanoaggregates are formed, and in the second step these aggregates interact to construct the densely packed secondary assembly. A transition from secondary assembly to primary assembly under shear initiates the mechanoresponsive destruction of the gel. In the self-assembly process, G1 propagates in a one-dimensional fashion, whereas G2 and G3 can propagate in a two-dimensionional fashion. The same side orientation of the substituents in G3 facilitates the formation of a compact closed-shell-type structure, which results in the generation of isolated nanocrystals. The long-range weak interaction together with the capability of propagating in two dimensions is found to be essential for the construction of such a mechanoresponsive assembly. C 60 and C 70 could be incorporated successfully in G2 assembly to develop mechanoresponsive fullerene assemblies. The presence of fullerenes not only enhances the elastic properties of G2 but also intensifies the thixotropy. C 70 appears to be a superior guest in terms of property enhancement due to its better size fitting with the concave-shaped host.

    DOI: 10.1021/ja211032m

  • Control of molecular aggregation structure of a liquid crystalline cellulose derivative Reviewed

    Tada Aki Yamagishi, Akihiko Ishizaki, Tomoki Ogoshi, Yoshiaki Nakamoto, Akihiko Takada

    KOBUNSHI RONBUNSHU   67 ( 12 )   705 - 708   2011.1

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    We have designed a new material with stable cholesteric structure by blending a cellulose derivative, (acetoxypropyl) cellulose (APC), with a thermoplastic polymer, poly (viny acetate) (PVAc). In the material obtained from THF solution, the compatibility between APC and PVAc was confirmed by differential scanning calorimetry (DSC) and infrared spectroscopy (IR). The materials showed colors arising from the selective reflection of circular polarized light. The colors depended on the composition of the materials. The material obtained from acetone solution showed phase separation into an APC rich phase and a PVAc rich phase, respectively. This indicated that the aggregation structure of APC/PVAc blends was affected by the preparation condition for materials. The FT IR results supported that the molecular aggregation structure was controlled by the hydrogen bonds between APC and PVAc polymer chains.

    DOI: 10.1295/koron.67.705

  • Characterization and mechanical properties of cellulose-graft-polyacrylonitrile prepared by using KMnO4/different acids as redox system Reviewed

    A. S. El-Khouly, Y. Takahashi, A. Takada, A. A. Safaan, E. Kenawy, Y. A. Hafiz

    Nihon Reoroji Gakkaishi   38 ( 3 )   133 - 140   2010.11

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    Cellulose-graft-polyacrylonitriles were prepared by using KMnO4/different acids redox system and the obtained samples were characterized by POM, SEM, 13C-NMR, XRD, TGA and their mechanical properties were investigated as a function of crystallinity degree (Cr %). In all cases, Cr decreased with increase of graft yield irrespective of acids species. Stress at break, strain at break and Young's modulus decreased with decreasing Cr %, which can be attributed to the increase of the amorphous region and the main chain rapture of cellulose. The mechanical properties of the samples prepared by strong acids became more poor than those for samples prepared by weak acids, indicating that more chain rupture occurred when strong acids are used.

    DOI: 10.1678/rheology.38.133

  • Regulation of a real-time self-healing process in organogel tissues by molecular adhesives Reviewed

    Pritam Mukhopadhyay, Norifumi Fujita, Akihiko Takada, Takanori Kishida, Michihiro Shirakawa, Seiji Shinkai

    Angewandte Chemie - International Edition   49 ( 36 )   6338 - 6342   2010.8

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    Say cheeeese! The thixotropic processes that occur in a naphthalenediimide-based organogel can be imaged in real time by TEM and AFM (see picture). The self-assembled 1D fibers disintegrate under mechanical stress and undergo a self-healing process during a resting time to reconstitute the 1D fibers.

    DOI: 10.1002/anie.201001382

  • Characterization and thermal stability of cellulose-graft- polyacryloniytrile prepared by using KMnO4/citric acid redox system Reviewed

    A. S. El-Khouly, Yoshiaki Takahashi, Akihiko Takada, A. A. Safaan, E. Kenawy, Y. A. Hafiz

    Journal of Applied Polymer Science   116 ( 3 )   1788 - 1795   2010.5

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    An effective condition of graft polymerization of acrylonitrile onto cellulose fiber in large volume of KMnO4/citric acid aqueous solution was examined and the produced grafted copolymers were characterized by using SEM, NMR, FTIR, XRD, TGA, and DSC in comparison with component homopolymers. Graft yield, GY, obtained by simple weighting method was close to the value obtained by NMR analysis. Significant change of chemical structure in cellulose fiber, other than graft reaction, was not detected by NMR and FTIR measurements, whereas a decrease in the degree of crystallinity by the reaction was detected by XRD measurement. It was pointed out that thermograms for grafted samples resembles with that of cellulose at T < 370°C and become similar with that for polyacrylonitrile at T > 370°C and the mass of residue at 550°C is proportional to the content of polyacrylonitrile (GY) only. It is concluded that thermal decomposition of both polymers occurs almost independently in grafted polymers and thermal stability of cellulose fiber is not improved.

    DOI: 10.1002/app.31679

  • Characterization and Thermal Stability of Cellulose-graft-Polyacryloniytrile Prepared by Using KMnO4/Citric Acid Redox System Reviewed International journal

    Amany S. El-Khouly, Yoshiaki Takahashi, Akihiko Takada, A. A. Safaan, El-Refaie Kenawy, and Y. A. Hafiz

    J. Appl. Polym Sci.   116   2010.3

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  • Weak gel of chitin with ionic liquid, 1-allyl-3-methylimidazolium bromide Reviewed

    Kamalesh Prasad, Masa aki Murakami, Yoshiro Kaneko, Akihiko Takada, Yoshifumi Nakamura, Jun ichi Kadokawa

    International Journal of Biological Macromolecules   45 ( 3 )   221 - 225   2009.10

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    This paper reports the formation of weak gel of chitin with an ionic liquid, 1-allyl-3-methylimidazolium bromide (IL). When a mixture of 5% (w/w) chitin with IL was heated at 100 °C for 48 h, the clear liquid was obtained. The experimental process was observed by the CCD camera view and the SEM analysis. From a mixture of chitin with IL in the higher concentration (7%, w/w), a more viscous material, i.e., a gel-like material was obtained. The rheological evaluations showed that both 5% (w/w) and 7% (w/w) chitins with IL behaved as weak gels.

    DOI: 10.1016/j.ijbiomac.2009.05.004

  • H型アルカンの結晶構造ならびに高密度ポリエチレンとの相溶性 Reviewed

    山元博子, 氷室絢子, 松本泰昌, 野田大輔, 高田晃彦, 本山幸弘, 高橋良彰

    材料   58   2009.1

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  • Crystal structure of H-ShapedAlkane H 3C(CH 2) 2} 2OHC(CH 2) 4COH{(CH 2) 2CH 3} 2 and its compatibility with high density polyethylene Reviewed

    Hiroko Yamamoto, Ayako Himuro, Taisuke Matsumoto, Daisuke Noda, Akihiko Takada, Yukihiro Motoyama, Yoshiaki Takahashi

    Zairyo/Journal of the Society of Materials Science, Japan   58 ( 1 )   1 - 4   2009.1

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    We synthesized a complex branched alkane (H-shaped) with two hydroxyl groups attached to branching points and studied its crystalline structure and also compatibility with high density polyethylene (PE). Results of DSC and X-ray diffraction on solution-crystallized and bulk-crystallized H-shaped alkanes gave same lattice constants for a triclinic type of crystal, a = 1.04nm, b = 1.27nm, c = 1.60nm, α = 95.7°, β = 91.6°, and γ= 109.4°. H-shaped/PE binary system showed a solid solution region 0.05 < Φ H < 0.40, where Φ H is the volume fraction of H-shaped alkane. On the other hand, in the region 0.46 < Φ H < 0.90, H-shaped and PE are considered to mix athermally in the liquid state and to present separately in this binary system, taking crystal structures different from each other.

    DOI: 10.2472/jsms.58.1

  • Viscoelastic Properties of Worm-like Micelle of Aluminum Tristearylate/Decahydronaphthalene Reviewed

    Shoichi Murata, Akihiko Takada, Hiroko Yamamoto, Yoshiaki Takahashi

    Nihon Reoroji Gakkaishi   36 ( 4 )   191 - 194   2008.12

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    Temperature dependence of dynamic viscoelastic properties for 7 wt% solution of aluminum tristearylate (C18Al) in decahydronaphthalene (decalin), prepared by 2 hours heating at 130 oC and 1 day aging at room temperature, are examined. Shapes of dynamic moduli vs. frequency plots are similar to those of entangled polymer systems, implying that this system forms wormlike micelles. Temperature dependence of zero shear viscosity η o can be expressed by an Arrhenius type equation. The specific viscosities obtained at different temperature are almost constant. Plateau modulus GN gradually increases with increase of temperature T, and the values reduced by absolute temperature are almost constant. The structure examined by small angle neutron scattering and X-ray diffraction was practically the same at different T. Therefore, we conclude that as long as the sample preparation condition is maintained the same, the network structure of C18Al/decalin micelle is practically the same at different temperatures and the main relaxation process of the network is similar to entangled polymers, at least for limited conditions tested in this study.

    DOI: 10.1678/rheology.36.191

  • Abnormal viscosity behaviour of ionic liquid 1-n-Butyl-3-methylimidazolium chloride

    Akihiko Takada, Kenta Imaichi, Yoshiaki Takahashi

    15th International Congress on Rheology The XVth International Congress on Rheology - The Society of Rheology 80th Annual Meeting   1447 - 1449   2008.9

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    Effect of adding an inorganic salt, lithium chloride, and water on viscosity of an ionic liquid, 1-n-butyl-3-methylimidazolium chloride (BmimCl), was investigated by shear stress measurements with a rheometer. Shear rate dependence of viscosity showed shear thinning behaviour, which implies that some structure should exist in the liquid and the structure should change at high shear rates. Addition of LiCl enhances the viscosity of BmimCl. The logarithmic value of zero shear viscosity, η0, of BmimCl increases linearly and largely with increasing the added salt contents. The increasing rate of the viscosity by addition of LiCl was about ten times larger than that for aqueous solution of LiCl. When water is added into BmimCl, viscosity decreased. The increasing rate of the viscosity by addition of LiCl for BmimCl with about 5 wt% of water was almost the same as that for BmimCl without addition of water.

    DOI: 10.1063/1.2964605

  • Viscoelastic properties of cellulose in 1-buthyl-3-methylimidazolium chloride

    Yoshiaki Takahashi, Akihiko Takada, Kenta Imaichi, Yoshihumi Nakamura

    15th International Congress on Rheology The XVth International Congress on Rheology - The Society of Rheology 80th Annual Meeting   318 - 320   2008.9

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    Viscoelastic properties of cellulose in an ionic liquid, 1-buthyl-3-methylimidazolium chloride (BmimCl) are measured in dilute and semidilute concentration regions. Intrinsic viscosity obtained in the dilute region was successively used to make a reduced plot of viscosity-concentration relationship. At the highest concentration, plateau region was observed.

    DOI: 10.1063/1.2964676

  • Abnormal Viscosity Increment Observed for an Ionic Liquid by Dissolving Lithium Chloride Reviewed International journal

    A Takada, K. Imaichi, T. Kagawa, and Y. Takahashi

    J. Phys. Chem. B.   112   2008.8

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  • Abnormal viscosity increment observed for an ionic liquid by dissolving lithium chloride Reviewed

    Akihiko Takada, Kenta Imaichi, Tomoyasu Kagawa, Yoshiaki Takahashi

    Journal of Physical Chemistry B   112 ( 32 )   9660 - 9662   2008.8

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    The effect of adding an inorganic salt, lithium chloride, and water on the viscosity of an ionic liquid, 1-n-butyl-3-methylimidazolium chloride (BmimCl), was investigated by shear stress measurements with a rheometer. The shear rate dependence of the viscosity showed shear thinning behavior, which implies that some structure should exist in the liquid and the structure should change at high shear rates. Addition of LiCl enhances the viscosity of BmimCl. The logarithmic value of zero-shear viscosity, η0, of BmimCl increases linearly and largely with increasing added salt content. The increasing rate of the viscosity by addition of LiCl was about 10 times larger than that for an aqueous solution of LiCl. When water is added into BmimCl, viscosity decreased. The increasing rate of the viscosity by addition of LiCl for BmimCl with about 5 wt % of water was almost the same as that for BmimCl without addition of water.

    DOI: 10.1021/jp800633x

  • Viscoelastic Properties of Worm-like Micelle of Aluminum Tristearylate/Decahydronaphthalene Reviewed International journal

    S. Murata, A. Takada, H. Yamamoto and Y. Takahashi

    Nihon Reoloji Gakkaishi (J. Soc. Rheol. Japan)   36   2008.6

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  • Structure and viscoelasticity of wormlike micellar solutions under steady shear flows Reviewed International journal

    Shoichi Murata, Akihiko Takada, Yoshiaki Takahashi

    J. Soc. Rheol. Jpn.   35 ( 4 )   2007.12

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  • イオン液体中のセルロースの溶液物性 Reviewed

    Akihiko Takada, Yoshiaki Takahashi

    Cellulose Communications   14 ( 4 )   2007.12

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    Solution Propeties of Cellulose solutions in an Ionic Liquid

  • Structure and viscoelasticity of wormlike micellar solutions under steady shear flows Reviewed

    Shoichi Murata, Akihiko Takada, Yoshiaki Takahashi

    Nihon Reoroji Gakkaishi   35 ( 4 )   185 - 189   2007.11

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    Structure and viscoelastic properties of aqueous wormlike micellar solutions of cetyltrimethylammonium bromide (CTAB) and sodium salicylate (NaSal) were investigated by rheological measurements, flow visualization using small dispersed particles and small-angle neutron scattering under steady shear flows. The concentrations of CTAB and NaSal were respectively fixed at 0.15 mol L -1, so as to show Maxwell type relaxation behavior in the linear mechanical response region. According to the stress response of steady shear flow measurements, shear rate regions were classified into three regions, i.e. (A) a Newtonian region (for γ̇ < γ̇l), (B) a stress plateau region (for γl̇< γ̇ < γḣ), which had a characteristic behavior of the shear-banding, and (C) a stress turnup region (for γ̇> γ̇h) where shear stress increased with γ̇ again. It was revealed that the fraction of the nematic phase flowing at γ̇h was proportional to the shear rate in the region B. The first normal stress difference, Nl, was approximately proportional to the shear rate in the region B, while it gradually decreased with increasing shear rates in the region C.

    DOI: 10.1678/rheology.35.185

  • Solubility Evaluation of Cellulose in Ionic Liquid by Viscoelasticity Reviewed International journal

    A. Takada

    AIP Conference Proceedings   1027   2007.10

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  • サーモトロピック液晶性セルロース Invited Reviewed

    高田 晃彦

    Cellulose Communications   2007.3

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    Thermotropic Liquid Crystals of Cellulose Derivatives

  • 分子量分布が異なるポリエチレンの結晶化に対する流動履歴の影響 Reviewed

    中島祐治・長谷川聡・高田晃彦・高橋良彰

    材料   2006.1

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  • Change in structure and viscoelasticity of thread-like micelles under steady shear flow

    Shoichi Murata, Hiroshi Hayashi, Akihiko Takada, Yoshiaki Takahashi

    55th SPSJ Annual Meeting Polymer Preprints, Japan - 55th SPSJ Annual Meeting   55   1171   2006

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    The change in structure and viscoelasticity of aqueous solutions of thread-like micelles of cetyltrimetylammonium bromide and sodium salicylate under steady shear flow were investigated by small angle neutron scattering and viscoelastic measurements. Two dimensional neutron scattering measurements showed that the same scattering profiles were observed for both vertical and horizontal directions at 1 sec -1 and above 200 sec -1. On the other hand, scattering intensity in the vertical direction was stronger than that in the horizontal direction at 10 ∼ 100 sec -1. In that shear rate region, shear stress was almost constant, while first normal stress difference was almost proportional to shear rate.

  • Thermoplastic elastomer formed by telechelic polymer/stearyl amine complex

    Mitunori Maeda, Akihiko Takada, Yoshiaki Takahashi

    55th Society of Polymer Science Japan Symposium on Macromolecules 55th SPSJ Symposium on Macromolecules   55   4435 - 4436   2006

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    Thermoplastic elastomers were prepared by association between crystalline amines and telechelic polymer with carboxyl groups (CTPEB) at both ends. The crystalline moieties of stearyl amine could be form a crystalline or semicrystalline structure and associated with each other, which lead to the network formation of telechelic polymer. These compound showed the thermoplastic behavior. In order to obtain samples with higher transition temperature, compared with stearyl amine, we tried several method. N-(2-aminoethyl) octadecanamide (NAODAm) used as a crystalline amine with high melting temperature for its hydroxyl bond. The complex between CTPEB and NAODAm had transition temperature with about 70°C which is about 30°C higher than that of CTPEB/stearyl amime (C18A) complex region.

  • Structure and viscoelasticity of alminium stearate in non-polar solvent

    Shoichi Murata, Takashi Ohkame, Hiroko Yamamoto, Akihiko Takada, Yoshiaki Takahashi

    55th Society of Polymer Science Japan Symposium on Macromolecules 55th SPSJ Symposium on Macromolecules   55   4437 - 4438   2006

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    We investigated structure and viscoelasticity of alminium stearate in non-polar solvent of decalin. Alminium stearate formed thread-like linear aggregate in decaline and showed a viscoelastic behavior of transient network. Its viscoelastic behevior and structure changed at around 55°C. In high temperature region above 55°C, G″ showed clear minimum and G′ and G″ could be superposed on master curves by time-temperature conversion scheme. Below 60°C, however, G″ did not shows a clear minimum and G″ could not be superposed on a master curve in high frequency region. Small neutron scattering measurement showed that the linear aggregate had a longer correlation length and a larger thread diameter in high temperature region than in low temperature region.

  • Solubility of cellulose in ionic liquid and its viscoelasticity

    Tomoyasu Kagawa, Akihiko Takada, Yoshiaki Takahashi

    55th Society of Polymer Science Japan Symposium on Macromolecules 55th SPSJ Symposium on Macromolecules   55   3137 - 3138   2006

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    Cellulose is insoluble in both water and general organic solvents. Recently, it was reported that cellulose is soluble in certain kind of ionic liquids, which are non-volatile liquid phase organic salts at around room temperature. In this study, we report on the difference of the viscoelastic properties of cellulose solutions prepared by two different methods. The effects of the added salt (LiCl) on the dissolution of cellulose are also examined. It was concluded that cellulose can be uniformly dissolved in the ionic liquid when samples are prepared by addition of LiCl or keeping under reduced pressure at 130°C.

  • Salt and surfactant concentration dependencies of the micelle structure consisting of a dual-surfactant

    Kenichi Eguchi, Kazuo Sakurai, Isamu Kaneda, Yoshiko Hiwatari, Yoshiaki Takahashi, Akihiko Takada

    55th Society of Polymer Science Japan Symposium on Macromolecules 55th SPSJ Symposium on Macromolecules   55   3236 - 3237   2006

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    A dual-surfactant aqueous solution made from LES and AMPB has been commonly used for shampoos. We investigate the salt and surfactant concentration dependencies of the micelle structure using the dynamic viscoelastic measurement and small angle X-ray scattering (SAXS).

  • Viscoelastic Network Formation by Ionic Complex Between Carboxyl Terminated Telechelic Polymer and Organic Amines Reviewed

    Akihiko Takada

    Theoretical and Applied Mechanics Japan   54   255 - 261   2005.1

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    We studied complex formation between carboxyl teminated telechelic polymer and organic amines such as aromatic and aliphatic amines and their mechanical properties. It turned out that aliphatic amines can form ionic complexes with the telechelic polymer. On the other hand, aromatic amines and pyridines did not form ionic complex with the polymer. Remarkable increase in viscosity was observed for the complex between the polymer and an aliphatic amine with two amino groups. The complex compound could flow and behave a viscoelastic network, even although all carboxyl groups of the polymer formed ionic complexes with equilibrium amount of amino groups of a diamino compound to form highly entangled network of long polymer chains and ring chains formed by association of original chains. The activation energy of flow process of the ionic complex was larger than that of the original telechelic polymer, which indicates that they have different flow mechanism. The flow property of the ionic complex should come from recombination process of ionic associates between carboxyl and amino groups.

    DOI: 10.11345/nctam.54.255

  • Heat-Set Gel-like Networks of Lipophilic Co(II) Triazole Complexes in Organic Media and Their Thermochromic Structural Transitions Reviewed

    Keita Kuroiwa, Tomoko Shibata, Akihiko Takada, Norio Nemoto, Nobuo Kimizuka

    Journal of the American Chemical Society   126 ( 7 )   2016 - 2021   2004.2

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    A novel class of thermally responsive supramolecular assemblies is formed from the lipophilic cobalt(II) complexes of 4-alkylated 1,2,4-triazoles. When an ether linkage is introduced in the alkylchain moiety, a blue gel-like phase is formed in chloroform, even at very low concentration (ca. 0.01 wt %, at room temperature). The blue color is accompanied by a structured absorption around 580-730 nm, which is characteristic of cobalt (II) in the tetrahedral (T d) coordination. Atomic force microscopy (AFM) and transmission electron microscopy (TEM) of the gel-like phase confirms the formation of networks of fibrous nanoassemblies with widths of 5-30 nm. The observed widths are larger than a molecular length of the triazole ligand (ca. 2.2 nm) and they are consisted of aggregates of Td coordination polymers. Very interestingly, the blue gel-like phase turned into a solution by cooling below 25 °C. A pale pink solution is obtained at 0 °C. indicating the formation of octahedral (Oh) complexes. The observed thermochromic transition is totally reversible. The formation of gel-like networks by heating is contrary to the conventional organogels, which dissolve upon heating. Temperature dependence of the storage and loss moduli (G′ and G″) shows minima around at 27 °C, at which temperature they gave comparable values. On the other hand, G′ exceeds G″ both in the gel-like phase (temperature above 27 °C) and in the solution phase (temperature below 25 °C). These observations indicate that Td complexes are present as low-molecular weight species around at 25-27 °C. They are self-assembled to polymeric Td complexes by heating and form gel-like networks. Upon cooling the solution below 25 °C, Td complexes are converted to Oh complexes and they also self-assemble into oligomeric or polymeric species at lower temperatures. The observed unique thermochromic transition (pink solution → blue gel-like phase) is accompanied by an exothermic peak in differential scanning calorimetry (DSC), and is shown to be an enthalpy-driven process. The lipophilic modification of one-dimensional coordination systems provides unique solution properties and it would be widely applicable to the design of thermoresponsive, self-assembling molecular wires.

    DOI: 10.1021/ja037847q

  • Viscoelasticity of potassium neutralized telechelic poly(ethylene-butylene) ionomer in non-polar solvent Reviewed

    Syed A. Rahman, Akihiko Takada, Norio Nemoto

    Nihon Reoroji Gakkaishi   30 ( 2 )   95 - 102   2002.1

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    Viscosity and viscoelasticity were measured for potassium neutralized telechelic poly(ethylene-butylene) ionomer, CTPEB-K, as well as the original polymer, CTPEB, in a non-polar solvent of decalin in a concentration range from dilute to semidilute regime. CTPEB-K was found to associate with each other even in the dilution limit. With increasing the polymer concentration, CTPEB-K solution showed a rapid increase in viscosity due to the formation of a huge cluster and further increase in the concentration lead to formation of a viscoelatic network with finite but quite high viscosity. The time-temperature superposition could be applied for the viscoelasticity of the network and the Arrhenius type of temperature dependence was observed. The viscoelastic network exhibited two or three relaxation modes. The fast mode may be assigned to the network rearrangement and the slow mode possibly to the cluster migration in the viscous fluid.

    DOI: 10.1678/rheology.30.95

  • An instrument for simultaneous kinetic measurements of microscopic infrared dichroism and stress of inhomogeneous polymer thin films at constant elongation rate Reviewed

    Yasuyoshi Shigematsu, Akihiko Takada, Norio Nemoto, Koh Hei Nitta

    Review of Scientific Instruments   72 ( 10 )   3927 - 3932   2001.10

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    A new instrument has been built for a study on deformation mechanisms of inhomogeneous polymer thin films from simultaneous in situ kinetic measurements of microscopic infrared dichroism and stress at constant elongation rate. During elongation, the center position of the film is slightly adjusted manually by direct observation of the sample using the microscope so as to measure IR interferogram from the same rectangular area with a side from 20 to 600 μm. The average orientation angle θ(t) of the main chain to the draw direction is estimated from the function A(t) = (A - A)/(A + A) using a photoelastic modulator. Here A and A are the absorbances measured with radiation polarized parallel and perpendicular to the draw direction, respectively. True stress is calculated from nominal stress by correcting changes in film thickness as well as width accompanied by large deformation. Capability and limit of the instrument are examined in detail using two polypropylene films with different morphologies, one consisting of crystallites showing no gross morphology such as spherluites and another including only a huge spherulite embedded in the matrix.

    DOI: 10.1063/1.1396666

  • Dynamic light scattering and dynamic viscoelasticity of poly(vinyl alcohol) in aqueous borax solutions. 5. Temperature effects Reviewed

    Kazuki Koga, Akihiko Takada, Norio Nemoto

    Macromolecules   32 ( 26 )   8872 - 8879   1999.12

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    Steady viscosity, dynamic viscoelasticity (DVE), and dynamic light scattering (DLS) measurements were made to study the effects of temperature, T, on association behaviors of poly(vinyl alcohol) (PVA) with weight-average degree of polymerization DPw = 350 in aqueous Borax solution. Intrinsic viscosity, [r/], monotonically decreased by 23% with a rise in T from 10 to 65 °C. At low T, enhancement in viscosity was observed with increasing polymer concentration, C, due to formation of viscoelastic network with the didiol complex as temporal cross-links, and the time-temperature superposition principle was found to be applicable for construction of a composite curve at each C. Those composite curves were further reduced so as to give one master curve. The system tended to lose its viscoelastic nature, when raising the temperature, toward a viscous solution owing to a decrease in the number of the didiol complexes as well as the shrinkage of the PVA chains. We found from analysis of DVE and DLS data that a clear boundary line between viscoelastic and viscous behaviors can be drawn on the T-C diagram using the temperature TN defined as the inflection point in a η vs T-1 plot for each C.

    DOI: 10.1021/ma990493w

  • Depolarized dynamic light scattering measurement of rotational motion of rod-like molecules in solution under sinusoidal strain Reviewed

    Yoshifumi Oyama, Akihiko Takada, Norio Nemoto

    Nihon Reoroji Gakkaishi   27 ( 4 )   249 - 250   1999.1

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    DOI: 10.1678/rheology.27.249

  • Dynamic light scattering and dynamic viscoelasticity of poly (vinyl alcohol) in aqueous borax solutions. 4. Further investigation on polymer concentration and molecular weight dependencies Reviewed

    Akihiko Takada, Miki Nishimura, Akihiro Koike, Norio Nemoto

    Macromolecules   31 ( 2 )   436 - 443   1998.1

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    Viscosity measurements are made on aqueous borax solutions of poly(vinyl alcohol) (PVA) samples over a wide range of PVA concentration, C, to examine the hydrodynamic properties of associated polymers compared to those of neutral polymers. The dynamic viscoelastic data are reanalyzed using a statistical-mechanical theory for elastically effective chains in transient gels developed by Tanaka and Ishida. The viscosity data are not superposed in the plot of viscosity against C[η] using the Huggins relationship, especially around and over a critical concentration, CN, at which the dynamical behaviors drastically change and an inflection point of a curve in the plot of the viscosity against C is located. On the other hand, when we assume that the chain dimension around CN is the unperturbed one, the viscosity data around CN is well-superposed on a curve in the plot of viscosity against C/C*up, where C*up is the overlapping concentration of the unperturbed chain. The inflection point of this composite curve is located at C/C*up = 1, which infers that CN corresponds to the overlapping concentration. All data of the density of elastically effective chains, νeff, are superposed on a curve in the plot of νefflν against (C - CN)/CN where ν is the density of polymer chains, which implies that CN should be regarded as a kind of gel point. Some discrepancies between the experimental data and the theoretical curve were observed, some of which cannot be explained using the pairwise association of PVA chains.

  • Structure and dynamics of ovalbumin gels II. Gels induced by heat treatment at 80°C Reviewed

    Akihiro Koike, Akihiko Takada, Norio Nemoto

    Polymer Gels and Networks   6 ( 3-4 )   257 - 271   1998.1

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    Dynamic viscoelastic measurements were made on ovalbumin gels prepared by two different thermal denaturation methods for a study of their gel structures. Results are discussed in the light of the fractal concept developed for the critical gel structure of synthetic polymers at the sol-gel transition point. Especially, a role of added salt on association kinetics of denatured proteins as well as on the resulting gel structures are described in detail.

    DOI: 10.1016/S0966-7822(98)00018-5

  • Structure and dynamics of ovalbumin gels III. Solvent effect Reviewed

    Kyoichi Nakamura, Masafumi Kiriyama, Akihiko Takada, Hideaki Maeda, Norio Nemoto

    Rheologica Acta   36 ( 3 )   252 - 261   1997.5

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    Solvent effects on dynamical and thermal behaviors of ovalbumin (OVA) gels induced by thermal denaturation at high temperature of 160°C were studied from dynamic shear modulus measurement, shear creep and creep recovery measurement, and DSC measurement. Two organic solvents, glycerin (G) and ethylene glycol (EG), and their mixtures with water (W)(G/W and EG/W) were used as solvent for preparation of gels. Stable gels formed in pure glycerin took a fractal structure at OVA concentration C range of 15-45wt% at a temperature specific to respective C, whereas a fractal structure was not observed for gels prepared in EG, G/W, and EG/W. The results were consistent with thermal denaturation behaviors of OVA in these solvents. Morphologies of two gels prepared in water and glycerin were explored using high resolution SEM, which showed that a basic unit responsible for formation of OVA gels was spheres with a diameter ranging from 20 to 40 nm, being much larger than 5.6 nm of the diameter of native OVA, and a fractal structure was related to network formation accompanied by melting of those spheres.

  • Dynamic viscoelasticity of telechelic polybutadiene lonomer solutions Reviewed

    Hideki Kitao, Akihiko Takada, Norio Nemoto

    Nihon Reoroji Gakkaishi   25 ( 4 )   201 - 202   1997.1

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    We present results of dynamic viscoelastic measurements on toluene solutions of telechelic polybutadiene-magnesium ionomer, as one of model systems suitable for a study on structure and dynamics of associating polymers over a wide range of temperature T and polymer concentration C. T dependence of the viscosity is found to be expressed as the product of two contributions, one from local segmental motion and the other from the dissociation-association process of the end ionic groups with the activation energy, Ea=77kJ/mol.

    DOI: 10.1678/rheology1973.25.4_201

  • Dynamics of associating polymers in solution Dynamic light scattering and dynamic viscoelasticity of poly(vinyl alcohol) in aqueous borax solution Reviewed

    Akihiko Takada, N. Nemoto

    Progress in Colloid and Polymer Science   106   183 - 187   1997.1

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    We have studied the dynamics of poly(vinyl alcohol) (PVA) in aqueous borax solution by dynamic light scattering (DLS) and dynamic viscoelastic (DVE) measurements. DLS measurement showed the presence of two dominant modes with decaying rates of Γf and Γsf > Γs). Different dynamical behaviors were observed above and below a critical concentration, CN. The slow mode was manifested to be the diffusive mode for PVA concentration C < CN and the relaxation mode for C > CN. Dynamical correlation length, ξH, estimated from Γf exhibited a jump at CN with increasing C. Detailed analysis revealed the applicability of the dynamic scaling theory to Γs for C < CN and the presence of the dynamic coupling between concentration fluctuation and elastic stress of the transient network for C > CN. From these results, we drew the picture on a growing process of associating PVA chains to a temporally cross-linked network with increasing C and proposed that CN corresponded to the gel point of the chemically cross-linked gel in the short-time domain. The concept is found to be useful for interpretation of the concentration dependence of the plateau modulus.

    DOI: 10.1007/BF01189517

  • Evaluation with B-value of the function of environmental humidity control of textiles Reviewed

    T. Ohta, T. Zhang, A. Takada

    sen'i gakkaishi   52 ( 5 )   234 - 241   1996.1

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    B-values of various moisture-absorbing textiles and usual interior materials such as lauan plywood were analyzed as a measure of the function of environmental humidity control, by measuring the continuous change of relative humidity accompaning with the periodic change of temperature in a closed vessel of 0.012 m3 including a textile or a usual interior material having a constant area or weight. The response of moisture-absorption (or -desorption) of each textile was quicker than that of lauan plywood for interior wall, so as to follow the change of relative humidity caused by the rapid change of temperature in a closed vessel. This is due to the markedly large specific surface area in a textile, concerning with the moisture-absorption (or -desorption), in comparison with that in a lauan plywood. The B-values determined at the constant area for each textile were lower than that of a lauan plywood, that is, the function of environmental humidity control of each textile was inferior to that of a lauan plywood. However, B-values at the constant weight for a cotton fabric. a woollen fabric, a rayon fabric and a solvron fabric were almost the same degree with that of lauan plywood. In B-values at the constant weight for these materials, the higher moisture-absorption led to the higher B-value. The highest moisture-absorption and the highest B-value were observed in the NF-38 non-woven fabric, 60 wt% of which was the high moisture-absorption fiber N. 38. These results show that the function of environmental humidity control of materials, having a large and different specific surface area, should be evaluated by B-value at the constant weight and that the textiles having a superior function of environmental humidity control, exceeding that of lauan ply wood, can be designed by controlling the weight/area of moisture-absorption textiles such as a cotton fabric.

    DOI: 10.2115/fiber.52.5_234

  • Orientation-Dependent Interactions in Polymer Systems. 5. Thermotropic Liquid Crystalline Transition of Tri-O-heptylcellulose Reviewed

    Akihiko Takada, Takeshi Fukuda, Junji Watanabe, Takeaki Miyamoto, Akihiko Takada, Junji Watanabe

    Macromolecules   28 ( 9 )   3394 - 3400   1995.4

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    Fairly narrow fractions of tri-O-heptylcellulose (THC) covering a wide range of degrees of polymerization (DP) were prepared and studied by viscometry and light scattering to determine the wormlike model parameters of the polymer to be q = 43.2 exp(-0.0050T) nm and ML = 880 nm-1, where q is the persistence length, ML is the shift factor, and T is the absolute temperature. The same fractions were studied with their thermal properties to determine the anisotropic-isotropic transition temperature Ti and transition entropy ΔS as a function of DP. Both Ti and ΔS increased with increasing DP to approach a limiting value for large enough DP. These trends were favorably compared with the predictions of the statistical models with the above-noted parameter values. It was shown that the main factor that causes the thermotropic transition and the chain-length dependence of Ti in bulk THC is the temperature-dependent flexibility of the polymer.

    DOI: 10.1021/ma00113a045

  • Orientation-Dependent Interactions in Polymer Systems. 4. Chain-Length Dependence of the Nematic-Isotropic Transition Behavior of Thermotropic Semiflexible Polymers Reviewed

    Takeshi Fukuda, Akihiko Takada, Yoshinobu Tsujii, Takeaki Miyamoto, Akihiko Takada

    Macromolecules   28 ( 9 )   3387 - 3393   1995.4

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    The nematic-isotropic transition behavior of semiflexible polymers in the bulk was studied on the basis of three typical models of orientation-dependent interactions (the Onsager-Kimura-type mean-field model, the lattice version of the Onsager model, and the Maier-Saupe-type soft interaction model) and two polymer models (the wormlike chain and the freely jointed chain with randomly distributed joints). The critical value of x = q/D required to stabilize the nematic phase was evaluated as a function of m = L/q for various combinations of the models, where L, q, and D are the contour length, the persistence length, and the diameter, respectively, of the chain. Even though x and x, the value of x at L → ∞, strongly depended on the models, the predicted ln(x/x) vs m relations were reasonably model-insensitive, offering a hopefully quantitative interpretation for the known dependence of the transition temperature Ti on chain length. (Note that q and hence x is a function of temperature.) Like Ti, the enthalpy change of transition was predicted to increase with L, approaching a constant value for large L. This behavior originates in the conformational change of semiflexible polymers and is not a characteristic of rigid rodlike molecules.

    DOI: 10.1021/ma00113a044

  • Discotic columnar liquid crystals in oligosaccharide derivatives III. Anomeric effects on the thermo-mesomorphic properties of cellobiose octa-alkanoates Reviewed

    Akihiko Takada, N. Ide, T. Fukuda, T. Miyamoto, K. Yamagata, J. Watanabe

    Liquid Crystals   19 ( 4 )   441 - 448   1995.1

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    The α-and β-anomers of cellobiose octa-alkanoates with purities higher than about 95 per cent were prepared from β -cellobiose by two simple esterification methods. The carbon number n of the acyl substituents ranged from 7 to 10 in both anomers. Both α -and β -anomers exhibited two types of discotic columnar phases (Dho and Dro), depending on n and temperature, but their phase diagrams were appreciably different. Generally, the α -anomers formed more stable mesophases than the β -anomers. In the Dro phase of the β -anomers, the column axis was tilted from the normal to the ‘disks’, while no such tilting was observed in the other phases.

    DOI: 10.1080/02678299508032005

  • The ultra-drawing behaviour of ultra-high-molecular-weight polyethylene comparison of the gel-like spherulite pressing method and the gel-casting method Reviewed

    Toshihiko Ohta, Akihiko Takada, Tomoko Yamamura, Akiyoshi Kawaguchi, Syozo Murakami

    polymer   36 ( 11 )   2181 - 2187   1995

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    Ultra-drawing behaviour has been studied by comparison of the gel-like spherulite pressing method and the gel-casting method using two kinds of specimens prepared from 2.0 wt% solution of ultra-high-molecular-weight polyethylene. The only major difference between the specimens is the cooling rate of solution. The influence of chain entanglement density in an undrawn specimen on the increase in strength and modulus with ultra-drawing has been discussed. The higher chain entanglement density of the undrawn specimen is the reason for the slopes of strength and modulus versus draw ratio being steeper in the gel-casting method. However, it was found that the differences in the above slopes between the two methods could not be explained by the changes in crystalline orientation and crystalline size with ultra-drawing.

    DOI: 10.1016/0032-3861(95)95294-B

  • Chain-Length Dependence of the Mesomorphic Properties of Fully Decanoated Cellulose and Cellooligosaccharides Reviewed

    Akihiko Takada, Kazunari Fujii, Junji Watanabe, Takeshi Fukuda, Takeaki Miyamoto

    Macromolecules   27 ( 6 )   1651 - 1653   1994.11

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    DOI: 10.1021/ma00084a057

  • Ultra-drawing behaviour of ultra-high-molecular-weight polyethylene in the gel-like spherulite press method Reviewed

    Toshihiko Ohta, Takao Wachi, Toshiki Nagai, Akihiko Takada, Yukiko Ikeda, Ohtsubo Takashi, Akiyoshi Kawaguchi

    polymer   34 ( 23 )   4863 - 4867   1993

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    Ultra-drawing behaviour in the gel-like spherulite press method has been investigated using two kinds of gel-like spherulites formed from 1.0 and 2.0 wt% solutions of ultra-high-molecular-weight polyethylene. The influence of chain entanglement density in a solution on the increase in strength and modulus with ultra-drawing is discussed. An equation predicting the maximum draw ratio from the drawing stress of the predrawn specimens is presented. It is concluded that the influence on the ultra-drawing behaviour of the spherulite size and lack of chain connection between spherulites can be ignored in this processing method.

    DOI: 10.1016/0032-3861(93)90010-8

  • Columnar liquid crystals in oligosaccharide derivatives II. Two types of discotic columnar liquid-crystalline phase of cellobiose alkanoates Reviewed

    Akihiko Takada, T. Fukuda, T. Miyamoto, Y. Yakoh, J. Watanabe

    Liquid Crystals   12 ( 2 )   337 - 345   1992.1

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    A series of cellobiose octaalkanoates, Cel-II-n (n is the carbon number of the alkyl chain), with n = 7–14 were prepared and their mesogenic properties examined by differential scanning calorimetry, optical polarizing microscopy and X-ray diffraction. All of these compounds form enantiotropic discotic columnar phases, in which the columns are built up by a regular stacking of the cellobiose moieties and are packed in a two dimensional lattice. Homologues with n = 9-14 form the Dho phase only whilst the compound with n = 7 forms the Dro phase. The n = 8 compound forms the Dho phase at higher temperatures and the Dro phase at lower temperatures. Structural parameters obtained from X-ray diffraction studies are presented for both phases.

    DOI: 10.1080/02678299208030401

  • Orientation-Dependent Interactions in Polymer Systems. 1. Segmental Orientation in Weakly Deformed Systems Reviewed

    Takeshi Fukuda, Akihiko Takada, Takeaki Miyamoto

    Macromolecules   24 ( 23 )   6210 - 6214   1991.11

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    The effects of orientation-dependent interactions on the segmental orientation in weakly deformed polymer systems were reexamined on the basis of lattice theories and gas-of-rods theories. Both the freely jointed chain and the wormlike chain were considered as polymer models. It was shown in a somewhat general fashion that the orientation-dependent excluded-volume effect or packing effect could give rise to a considerable amount of excess orientation over that predicted in the absence of such an effect. For a dry system of freely jointed chains comprising rodlike segments of axial ratio 2, for example, the relative excess orientation was estimated to range roughly from 30 to 100%, depending on the theories. This value of the axial ratio seems to approximate the flexibilities of common vinyl polymers, and in this context, the volume effect would never be a minor one even for the “flexible” class of polymers. The nature of and the differences among the various statistical models were discussed in some detail.

    DOI: 10.1021/ma00023a023

  • Columnar liquid crystals in oligosaccharide derivatives I. discotic columnar liquid crystals in cellobiose octadecanoate and cellotriose hendecadecanoate Reviewed

    T. Itoh, A. Takada, T. Fukuda, T. Miyamoto, Y. Yakoh, J. Watanabe

    Liquid Crystals   9 ( 2 )   221 - 228   1991.1

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    Cellobiose octadecanoate and cellotriose hendecadecanoate were synthesized and their mesophase properties were studied. Both ester derivatives show enantiotropic mesophases in the temperature region below 100°C. From the observations of microscopic texture and X-ray pattern, the mesophase was found to be of the hexagonal columnar, in which the column is built up by a periodic stacking of the cellobiose or cellotriose skeleton and packed into a two-dimensional hexagonal lattice. The mesophase is thus similar to the hexagonal ordered columnar (Dho) phase in a class of discotics, indicating that cellobiose and cellotriose moieties can work as discotic mesogens.

    DOI: 10.1080/02678299108035499

  • Thermotropic liquid crystals based on oligosaccharides Reviewed

    Takeshi Fukuda, Makoto Sugiura, Akihiko Takada, Takahiro Itoh, Yung Dae Ma, Masahiko Minoda, Takeaki Miyamoto

    sen'i gakkaishi   47 ( 8 )   452 - 455   1991.1

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    Acylation or regio-selective alkylation of cello- and/or chito-oligosaccharides provides a new family of thermotropic liquid crystals. Some of the mesophase textures and thermal properties exhibited by these compounds were presented.

    DOI: 10.2115/fiber.47.8_452

  • Free-radical copolymerization VII. reinterpretation of velocity-of-copolymerization data Reviewed

    Takeshi Fukuda, Yung Dae Ma, Keiji Kubo, Akihiko Takada

    Polymer Journal   21 ( 12 )   1003 - 1009   1989.12

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    Velocity-of-copolymerization data available in the literature were reinterpreted on the basis of the current notions that the penultimate-unit effect with respect to absolute values of propagation rate constant (but not with respect to the monomer reactivity ratios) is a general rule, and that the termination step is diffusion-controlled, i.e., normal. By making a few simplifying approximations, a new velocity equation was derived, which was found to describe experimental data generally better than the classical equation based on the terminal propagation model with a single adjustable parameter φ, the cross-termination factor. The single adjustable parameter s included in the new equation, which measures the penultimate-unit effect, was found to have a strong correlation with the monomer reactivity ratios such that the smaller r1r2, the smaller is s, i.e., the more significant is the penulimate-unit effect. This result is in support of the relation r1r2=s1s2 suggested by the phenomenological theory [T. Fukuda et al., Makromol. Chem., Rapid Commun., 8, 495 (1987)].

    DOI: 10.1295/polymj.21.1003

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Books

  • 化学便覧 基礎編 改訂第6版 「分散系の粘性率」

    高田 晃彦・佐藤 尚弘(Role:Joint author)

    丸善出版  2021.2 

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    Language:Japanese   Book type:Scholarly book

  • 化学便覧 基礎編 改訂第6版 「粘弾性」

    高田 晃彦・佐藤 尚弘(Role:Joint author)

    丸善出版  2021.2 

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    Language:Japanese   Book type:Scholarly book

  • 化学便覧 基礎編 改訂第6版 「高分子溶液の粘性率」

    高田 晃彦・佐藤 尚弘(Role:Joint author)

    丸善出版  2021.2 

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    Language:Japanese   Book type:Scholarly book

  • 化学便覧 改訂第5版 「輸送現象」

    根本紀夫・高田晃彦(Role:Joint author)

    丸善出版  2004.2 

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    Language:Japanese   Book type:Scholarly book

Presentations

  • 九州大学で用いられる化学物質リスクアセスメントの手法 ―法改正などに伴う対応について―

    高田晃彦、黒木孝一

    労働衛生工学会  2023.11 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:水戸市民会館   Country:Japan  

  • A,C測定の測定値に差の発生する原因について

    黒木孝一、高田晃彦

    労働衛生工学会  2022.10 

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    Event date: 2022.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 粉じん作業場での「場」と「ばく露」の粒径分布について

    黒木孝一、高田晃彦

    労働衛生工学会  2019.11 

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    Event date: 2019.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • セルロース:多糖類としての特徴とその利用 Invited

    高田晃彦

    高分子九州フォーラム  2019.2 

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    Event date: 2019.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Water and UV Resistant BMIMCl Compatibilized Cellulose/Lignin Composite Film International conference

    M. A. Haq, S. Idenoue, K. Yamamoto, A. Takada, and J. Kadokawa

    The 12th SPSJ International Polymer Conference  2018.12 

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    Event date: 2018.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 溶接作業場の粉じん形状による成分の相違について(第 1 報)

    黒木孝一、高田晃彦

    労働衛生工学会  2018.11 

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    Event date: 2018.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Inducing the Crystallization in Cotton Cellulose Ion Gel Films for Enhanced Mechanical Properties International conference

    Muhammad Abdul Haq, Yasuhiro Habu, Kazuya Yamamoto, Akihiko Takada, Jun-ichi Kadokawa

    The Fiber Society’s Spring 2018 Conference  2018.6 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Preparation of Elastic Cellulose Film Using Ionic Liquid

    Muhammad Abdul Haq, Yasuhiro Habu, Kazuya Yamamoto, Akihiko Takada, Jun-ichi Kadokawa

    第67回高分子学会年次大会  2018.5 

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    Event date: 2018.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Preparation of Hydroxypropyl Cellulose/Polysiloxane Hybrid Material International conference

    Akihiko Takada, Tadaaki Yamagishi

    International Cellulose Conference 2017  2017.10 

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    Event date: 2017.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Preparation of Thermoplastic Cellulose Film Using Ionic Liquid International conference

    Yasuhiro Habu, Keisho Iimori, Kazuya Yamamoto, Akihiko Takada, Jun-ichi Kadokawa

    International Cellulose Conference 2017  2017.10 

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    Event date: 2017.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Preparation of cellulose films with thermoplastic property via ionic liquid gelation International conference

    Akihiko Takada: Yasuhiro Habu: Kazuya Yamamoto: Jun-ichi Kadokawa

    International Polymer Conference 2016  2016.12 

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    Event date: 2016.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 九州大学における化学物質リスクアセスメントの構築

    高田晃彦、黒木孝一

    労働衛生工学会  2016.11 

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    Event date: 2016.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Fabrication of Thermoplasticized Cellulose with Ionic Liquid International conference

    Yasuhiro Habu, Kazuya Yamamoto, Akihiko Takada, Jun-ichi Kadokawa

    9th International Conference on Fiber and Polymer Biotechnology  2016.9 

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    Event date: 2016.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • セルロースのイオン液体の溶解とその粘弾性 Invited

    高田 晃彦

    セルロース学会西部支部セミナー  2012.11 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:福岡市,福岡大学   Country:Japan  

  • Elasticity of Gelatin/Sodium Alginate Interpenetrating Network Gel International conference

    Akihiko Takada

    3 rd International Cellulose Conference (ICC 2012)  2012.10 

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    Event date: 2012.10

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Sapporo Gateau Kingdom, Sapporo   Country:Japan  

  • Elasticity of Sodium Alginate Interpenetrating Gels International conference

    Akihiko Takada, Masashi Nakamura, Yoshiaki Takahashi

    繊維学会夏季セミナー  2012.8 

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    Event date: 2012.8

    Language:English   Presentation type:Oral presentation (general)  

    Venue:奈良市公会堂   Country:Japan  

  • アルギン酸ナトリウム/ゼラチン系相互侵入網目IPNの弾性率とその構造

    高田 晃彦・中村 昌司・高橋 良彰

    第18回セルロース学会  2011.7 

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    Event date: 2011.7

    Presentation type:Oral presentation (general)  

    Venue:長野市(信州大学)   Country:Japan  

  • 液晶性セルロース誘導体の高次構造制御

    本椙 憲仁・生越 友樹・山岸 忠明・高田 晃彦

    第60回高分子学会  2011.5 

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    Event date: 2011.5

    Presentation type:Oral presentation (general)  

    Venue:大阪   Country:Japan  

  • Rheological Properties of Sodium Alginate-gelatin Gels International conference

    Masashi Nakamura, Akihiko Takada, Yamigishi Tadaaki

    The 6th International Workshop for East Asian Young Rheologists  2011.1 

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    Event date: 2011.1

    Venue:Yamagata   Country:Japan  

  • Viscoelastic Properties of Silk Fibroin in Ionic Liquid International conference

    Hiroshi Ichikawa, Akihiko Takada, Yamigishi Tadaaki

    The 6th International Workshop for East Asian Young Rheologists  2011.1 

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    Event date: 2011.1

    Venue:Yamagata   Country:Japan  

  • Viscoelastic Properties of Pullulan in Ionic Liquid BmimCl International conference

    Hu Hao, Akihiko Takada, Yoshiaki Takahashi

    The 6th International Workshop for East Asian Young Rheologists  2011.1 

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    Event date: 2011.1

    Venue:Yamagata   Country:Japan  

  • Viscoelastic Properties of Cellulose Solution in and Ionic Liquid International conference

    Akihiko Takada

    International Symposium on Non-Equilibrium Soft Matter 2010  2010.8 

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    Event date: 2010.8

    Presentation type:Oral presentation (general)  

    Venue:Nana New Public Hall (Nara)   Country:Japan  

  • Viscoelastic Properties of Pullulan solution in an ionic liquid 1-Butyl-3-methylimidazolium Chloride International conference

    Hu Hao, Akihiko Takada, and Yoshiaki Takahashi

    5th Pacific Rim Conference on Rheology  2010.8 

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    Event date: 2010.8

    Presentation type:Oral presentation (general)  

    Venue:Hokkaido University   Country:Japan  

  • Elasticity of Gelatin/Sodium Alginate Interpenetrating Network (IPN) International conference

    Akihiko Takada

    5th Pacific Rim Conference on Rheology  2010.8 

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    Event date: 2010.8

    Presentation type:Oral presentation (general)  

    Venue:Hokkaido University   Country:Japan  

  • Structure and Properties of Ionic Liquid and Its Polysaccharide Solutions Invited International conference

    Akihiko Takada

    International Conference on Recent Advances in Physics  2010.3 

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    Event date: 2010.3

    Venue:Dhaka   Country:Bangladesh  

  • Preparation of Hydroxypropylcellulose/polysiloxane hybrid under Gelation/Polymerization Competing Condition International conference

    Shinzaburo Katsuta, Akihiko Takada, Yamigishi Tadaaki

    The 5th International Workshop for East Asian Young Rheologists  2010.1 

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    Event date: 2010.1

    Venue:Pusan   Country:Korea, Republic of  

  • Viscoelasticity of Pullulan in Ionic Liquid BmimCl International conference

    Hu Hao, Masayasu Kamo, Akihiko Takada, and Yoshiaki Takahashi

    The 5th International Workshop for East Asian Young Rheologists  2010.1 

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    Event date: 2010.1

    Venue:Pusan   Country:Korea, Republic of  

  • Viscoelastic Properties of Dilute Cellulose Solutions in 1‐Buthyl‐3‐methylimidazolium Chloride International conference

    Yoshiaki Takahashi, Eriko Maruyama, Yoshihumi Nakamura, Akihiko Takada

    The 1st FAPS Polymer Congress  2009.10 

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    Event date: 2009.10

    Venue:Nagoya   Country:Japan  

  • セルロースハイブリッド材料の合成と機能

    本椙 憲仁、生越 友樹、山岸 忠明、高田 晃彦

    セルロース学会第15回年次大会  2009.7 

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    Event date: 2009.7

    Presentation type:Oral presentation (general)  

    Venue:札幌   Country:Japan  

    Synthesis and Functionalization of Cellulose Hybrid Materials

  • プルランのイオン液体中における粘弾性挙動

    高田 晃彦、加茂 雅康、高橋 良彰

    セルロース学会第15回年次大会  2009.7 

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    Event date: 2009.7

    Presentation type:Oral presentation (general)  

    Venue:札幌   Country:Japan  

    Viscoelasticity of pullulan solution in ionic liquids

  • コロイド分散系のレオロジー

    高田 晃彦

    特別推進研究「濃厚ポリマーブラシの科学と技術」公開シンポジウム  2009.3 

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    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  • Grafting of poly(acrylonitrile) onto cellulose by potassium permanganate/weak acid initiating system and study of the thermal characterization of cellulose and its grafted copolymer International conference

    A. S. Khouly, Y. Takahashi, A, Takada, A. A. Safaan, E. Kenawy, and Y. A. Hafiz

    The 3rd International Symposium on Polymer Science  2008.11 

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    Event date: 2008.11

    Presentation type:Oral presentation (general)  

    Venue:Nagoya   Country:Japan  

  • 組み換え網目の力学物性 Invited

    高田晃彦

    広域物性研究会 広島シンポジウム2008  2008.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:広島市   Country:Japan  

  • イオン性液体BmimClへのセルロースの溶解と粘弾性

    高田晃彦, 中村佳史, 高橋 良彰

    第56回レオロジー討論会  2008.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:新潟市   Country:Japan  

  • プルランのイオン液体BmimClへの溶解とその物性評価

    加茂 雅康, 高田晃彦, 高橋良彰

    第56回レオロジー討論会  2008.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:新潟市   Country:Japan  

  • アルギン酸ナトリウム/ゼラチン系IPN の構造とその弾性率

    中村昌司,高橋良彰,高田晃彦

    第57回レオロジー討論会  2009.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:宇部市   Country:Japan  

  • ヒドロキシプロピルセルロース水溶液の熱ゲル化およびシロキサンとのハイブリッド

    勝田盛三朗,高田晃彦,高橋良彰

    第57回レオロジー討論会  2009.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:宇部市   Country:Japan  

  • 1-butyl-3- methylimidazolium chloride と水および有機溶媒の混合系の物性と構造の評価

    丸山恵梨子,Amany EL-Khouly,高田晃彦,高橋良彰,松宮由実,渡辺 宏

    第57回レオロジー討論会  2009.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:宇部市   Country:Japan  

  • プルランのイオン液体Bmimcl 中の粘弾性

    胡 皓, 加茂雅康, 高田晃彦, 高橋良彰

    第57回レオロジー討論会  2009.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:宇部市   Country:Japan  

  • セルロースのイオン液体溶液の粘弾性

    高橋良彰,丸山恵梨子,中村佳史,今市健太,高田晃彦

    第57回レオロジー討論会  2009.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:宇部市   Country:Japan  

  • Abnormal Viscosity Behaviour of Ionic Liquid 1-n-butyl-3-methylimidazolium chloride International conference

    Akihiko Takada, Kenta Imaichi and Yoshiaki Takahashi

    International Conference on Rheology  2008.8 

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    Event date: 2008.8

    Presentation type:Oral presentation (general)  

    Venue:Monterey, USA   Country:United States  

  • Viscoelastic Properties of Cellulose in 1-Buthyl-3-methylimidazolium Chloride International conference

    Yoshiaki Takahashi, Akihiko Takada, Kenta Imaichi and Yoshihumi Nakamura

    International Conference on Rheology  2008.8 

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    Event date: 2008.8

    Presentation type:Oral presentation (general)  

    Venue:Monterey, USA   Country:United States  

  • 多糖類のイオン性液体への溶解

    加茂雅康、高田晃彦、高橋良彰

    セルロース学会第15回年次大会  2008.7 

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    Event date: 2008.7

    Presentation type:Oral presentation (general)  

    Venue:京都大学桂キャンパス   Country:Japan  

    Dissolution of polysaccharides in ionic liquids

  • セルロ-ス誘導体を用いた有機・無機のハイブッリド材料の合成

    山岸忠明, 山田良幸, 生越友樹, 中本義章, 高田晃彦, 中島貴文

    セルロース学会第15回年次大会  2008.7 

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    Event date: 2008.7

    Presentation type:Oral presentation (general)  

    Venue:京都大学桂キャンパス   Country:Japan  

    Preparation of organic-inorganic hybrid using cellulose derivatives

  • Crystal Structure of H-Shaped Alkane {H3C(CH2)2}2OHC(CH2)4COH{(CH2)2CH3}2 and Its Compatibility with High Density Polyethylene International conference

    Hiroko Yamamoto, Ayako Himuro, Taisuke Matsumoto, Daisuke Noda, Akihiko Takada, Yukihiro Motoyama, and Yoshiaki Takahashi

    MACRO 2008  2008.6 

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    Event date: 2008.6 - 2008.7

    Presentation type:Oral presentation (general)  

    Venue:Taipei   Country:Taiwan, Province of China  

  • Thermoplastic Elastomer Formed by Telechelic Polymer and Organic Amines. International conference

    A. Takada, K. Saeki, and Y. Takahashi

    The 10th Pacific Polymer Conference  2007.12 

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    Event date: 2007.12

    Presentation type:Oral presentation (general)  

    Venue:神戸国際会議場   Country:Japan  

  • Preparation and Properties of Cholesteric Surface of Cellulose Derivatives International conference

    T. Yamagishi, S. Yoshioka, Y. Yamada, T. Ogoshi, Y. Nakamoto, T. Nakajima, A. Takada

    The 10th Pacific Polymer Conference  2007.12 

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    Event date: 2007.12

    Presentation type:Oral presentation (general)  

    Venue:神戸国際会議場   Country:Japan  

  • イオン液体1-butyl-3-metylimidazolium chlorideを溶媒としたセルロース溶液の粘弾性挙動

    今市健太、香川智、高田晃彦、高橋良彰

    第55回レオロジー討論会  2007.11 

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    Event date: 2007.11

    Presentation type:Oral presentation (general)  

    Venue:金沢大学   Country:Japan  

  • イオン液体1-butyl-3-metylimidazolium chlorideに溶解したプルラン溶液の粘度測定

    高田晃彦、加茂雅康,今市健太,高橋良彰

    第55回レオロジー討論会  2007.11 

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    Event date: 2007.11

    Presentation type:Oral presentation (general)  

    Venue:金沢大学   Country:Japan  

  • Cholesteric structure control of cellulose derivatives by polymer blend with vinyl polymers International conference

    Akihiko Takada,a Hirofumi Nakajima,a Sachiko Yoshioka, b and Yamagishi Taka-aki

    International Cellulose Conference 2007  2007.10 

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    Event date: 2007.10

    Venue:Tokyo   Country:Japan  

  • Solubility evaluation of cellulose in ionic liquid by viscoelasticity International conference

    Akihiko Takada

    International Cellulose Conference 2007  2007.10 

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    Event date: 2007.10

    Presentation type:Oral presentation (general)  

    Venue:Tokyo   Country:Japan  

  • 多価金属イオンにより中和したカルボキシル末端テレケリックポリマー会合体の力学的性質

    高田晃彦,田中惇,高橋良彰

    第19回高分子加工技術討論会  2007.10 

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    Event date: 2007.10

    Presentation type:Oral presentation (general)  

    Venue:名古屋市工業試験所   Country:Japan  

  • テレケリックポリマーとステアリルアミンの複合体が形成する熱可塑性エラストマー

    高田晃彦,佐伯功二,高橋良彰

    第19回高分子加工技術討論会  2007.10 

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    Event date: 2007.10

    Presentation type:Oral presentation (general)  

    Venue:名古屋市工業試験所   Country:Japan  

  • Structure and Dynamics of Network System Formed by Transient Crosslinks Invited International conference

    Akihiko Takada

    2007 Joint workshop on Rheology for Doctor Candidates  2007.8 

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    Event date: 2007.8

    Presentation type:Oral presentation (invited, special)  

    Venue:Hanzhou   Country:China  

  • Structure and Viscoelasticity of Wormlike Micellar Solutions under Steady Shear Flows International conference

    Akihiko Takada

    Institute for Chemical Research International Symposium  2007.6 

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    Event date: 2007.6

    Presentation type:Oral presentation (general)  

    Venue:京都大学宇治キャンパス   Country:Japan  

  • イオン液体1−butyl−3−methylimidazolium chlorideの示す特異な粘性挙動

    今市健太、高田晃彦、高橋良彰

    日本レオロジー学会第34年会  2007.5 

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    Event date: 2007.5

    Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  • CTAB/NaSalひも状ミセル水溶液の定常流動粘弾性の塩濃依存性

    村田将一、高田晃彦、高橋良彰

    日本レオロジー学会第34年会  2007.5 

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    Event date: 2007.5

    Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  • Thermoplastic Elastomeric Behaviors for Mixture of Carboxyl-terminated Telechelic Poly(ethylene-butylene) and Stearylamine International conference

    Yoshiaki Takahashi, Mitsunori Maeda, Koji Saeki, and Akihiko Takada

    4th Annual European Rheology Conference Meeting  2007.4 

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    Event date: 2007.4

    Presentation type:Oral presentation (general)  

    Venue:Napoli   Country:Italy  

  • 九州大学で用いられる化学物質リスクアセスメントの手法 法改正などに伴う対応について

    高田 晃彦, 黒木 孝一

    日本労働衛生工学会抄録集  2023.11  日本労働衛生工学会

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    Language:Japanese  

  • 九州大学で用いられる化学物質リスクアセスメントの手法 法改正などに伴う対応について

    高田 晃彦, 黒木 孝一

    労働衛生工学  2024.6  日本労働衛生工学会

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    Language:Japanese  

  • Structure and Properties of Ovalbumin Gels Induced by High Temperature Heat Treatments International conference

    Akihiko Takada

    Synchrotron Radiation in Polymer Science III  2006.7 

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    Presentation type:Oral presentation (general)  

    Venue:Tatsuno, Hyogo   Country:Japan  

    Structure and Properties of Ovalbumin Gels Induced by High Temperature Heat Treatments

  • 両末端にカルボキシル基を有する高分子と有機アミン複合系の構造と粘弾性

    細井 善和・高田 晃彦・高橋 良彰・根本 紀夫

    高分子学会  2004.5 

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    Presentation type:Oral presentation (general)  

    Venue:神戸市 神戸国際会議場   Country:Japan  

    Structure and Viscoelsticity of Ionic Complex between Carboxyl Terminated Polymer and Amines

  • 卵白アルブミンの熱変性会合ゲル Invited

    高田晃彦

    蛋白質水溶液構造研究会  2006.3 

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    Presentation type:Oral presentation (general)  

    Venue:茨城県つくば市   Country:Japan  

    Egg White Albumin Gels Induced by Heat Treatments

  • セルロースフィルムの力学特性に及ぼす低分子添加物の効果

    井上奈保子・高田 晃彦・高橋 良彰

    セルロース学会第13回年次大会  2006.7 

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    Presentation type:Oral presentation (general)  

    Venue:東京都文京区   Country:Japan  

    Effects of Low Molecular Additives on Mechanical Propeties of Cellulose Films

  • 結晶性アミンとテレケリックポリマーの会合による熱可塑性弾性体の作製

    前田光範・高田 晃彦・高橋 良彰

    レオロジー年会  2006.5 

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    Presentation type:Oral presentation (general)  

    Venue:東京都千代田区   Country:Japan  

    Thermoplastic Elastomers of Telechellic Polymer/Crystalline Amine Blends

  • テレケリックアイオノマーの構造と粘弾性 Invited

    高田晃彦

    複雑物質科学シンポジウム  2006.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡市   Country:Japan  

    Structure and Dynamics of Telechelic Ionomers

  • 天然高分子のイオン液体に対する溶解性及び溶液の粘弾性

    香川智靖, 高田晃彦, 高橋良彰, 君塚信夫

    高分子学会  2006.5 

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    Presentation type:Oral presentation (general)  

    Venue:名古屋市   Country:Japan  

    Solubility of Natural Polymers in Ionic Liquids and Viscoelasticity of the Solutions

  • ひも状ミセルの定常ずり流動下における構造と粘弾性変化

    村田将一, 林洋志, 高田晃彦, 高橋良彰

    高分子学会  2006.5 

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    Presentation type:Oral presentation (general)  

    Venue:名古屋市   Country:Japan  

    Change of Structure and Viscoelasticity of Thread-like Micelles under Steady Shear Flows

  • セルロースフィルムの力学物性に対する低分子物質添加の効果

    井上奈保子・高田 晃彦・高橋 良彰

    セルロース学会第13回年次大会  2006.7 

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    Presentation type:Oral presentation (general)  

    Venue:東京都文京区   Country:Japan  

    Effects of Low Molecular Additives on Mechanical Propeties of Cellulose Films

  • イオン性液体に対するセルロースの溶解性および溶液の粘弾性

    香川智靖, 高田晃彦, 高橋良彰

    高分子討論会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:富山市   Country:Japan  

    Solubility of Cellulose in Ionic Liquids and Viscoelasticity of its Solutions

  • テレケリックポリマー/ステアリルアミン複合体の形成する熱可塑性エラストマー

    前田光範, 高田晃彦, 高橋良彰

    高分子討論会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:富山市   Country:Japan  

    Thermoplastic Elastomer Formed by Telechelic Polymer and Stearyl Amine Complex

  • 非極性溶媒中におけるステアリン酸アルミニウムの構造と粘弾性

    村田将一, 大亀敬史, 山元博子, 高田晃彦, 高橋良彰

    高分子討論会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:富山市   Country:Japan  

    Structure and Viscoelasticity of Alminium Stearate in Non-polar Solvent

  • イオン性液体の粘度に対する塩添加の効果

    今市健太, 香川智靖, 高田晃彦, 高橋良彰

    高分子討論会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:富山市   Country:Japan  

    Structure and Viscoelasticity of Alminium Stearate in Non-polar Solvent

  • 低分子添加物がセルロースフィルムの力学物性に及ぼす効果

    井上奈保子・高田 晃彦・高橋 良彰

    高分子討論会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:富山市   Country:Japan  

    Effects of Low Molecular Additives on Mechanical Propeties of Cellulose Films

  • イオン性複合体を利用した熱可塑性エラストマー

    前田光範, 高田晃彦, 高橋良彰

    繊維学会第59回秋季研究発表会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:金沢市   Country:Japan  

    Thermoplastic Elastomer Formed by Telechelic Ionomer Complex

  • 粘弾性を利用したイオン性液体に対するセルロースの溶解性の検討

    香川智靖, 高田晃彦, 高橋良彰

    繊維学会第59回秋季研究発表会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:金沢市   Country:Japan  

    Solubility of Cellulose in Ionic Liquids and Viscoelasticity of its Solutions

  • セルロースフィルムの力学物性に及ぼす無機塩・低分子添加剤の効果

    井上奈保子・高田 晃彦・高橋 良彰

    繊維学会第59回秋季研究発表会  2006.9 

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    Presentation type:Oral presentation (general)  

    Venue:富山市   Country:Japan  

    Effects of Low Molecular Additives on Mechanical Propeties of Cellulose Films

  • セルロース/イオン液体溶液の粘弾性

    香川智靖, 高田晃彦, 高橋良彰

    レオロジー討論会  2006.10 

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    Presentation type:Oral presentation (general)  

    Venue:福岡市   Country:Japan  

    Solubility of Cellulose in Ionic Liquids and Viscoelasticity of its Solutions

  • セルロース希薄イオン液体溶液の粘弾性

    今市健太, 香川智靖, 高田晃彦, 高橋良彰

    レオロジー討論会  2006.10 

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    Presentation type:Oral presentation (general)  

    Venue:福岡市   Country:Japan  

    Viscoelasticity of Dilute Solutions of Cellulose in Ionic Liquids

  • テレケリックポリマーとアミンの会合体の構造と粘弾性

    佐伯功二, 高崎幹大, 本山幸弘, 永島英夫, 高田晃彦, 高橋良彰

    レオロジー討論会  2006.10 

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    Presentation type:Oral presentation (general)  

    Venue:福岡市   Country:Japan  

    Structure and Viscoelasticity of Associates of Telechelic Polymer and Amines

  • 卵白アルブミンの高温熱変性会合挙動 Invited

    高田晃彦

    第50回日本学術会議材料工学連合講演会  2006.12 

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    Presentation type:Oral presentation (general)  

    Venue:京都市   Country:Japan  

    Association Propeties of Egg White Albumin by Heat Treatments

  • A、C測定の測定値に差の発生する原因について

    黒木 孝一, 高田 晃彦

    日本労働衛生工学会・作業環境測定研究発表会抄録集  2022.10  日本労働衛生工学会

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    Language:Japanese  

  • A,C測定の測定値に差の発生する原因について

    黒木 孝一, 高田 晃彦

    労働衛生工学  2023.7  日本労働衛生工学会

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    Language:Japanese  

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MISC

  • Preparation of cellulosic soft and composite materials using ionic liquid media and ion gels. Reviewed

    Akihiko Takada, Junichi Kadokawa

    Cellulose   2022.1

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: https://doi.org/10.1007/s10570-021-04215-9

  • A、C測定の測定値に差の発生する原因について

    黒木孝一・高田晃彦

    労働衛生工学   2023.4

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    Language:Japanese  

  • 大学の実験室における作業環境測定

    高田 晃彦

    2021年度九州大学環境報告書   2021.9

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • Dissolution of Cellulose in Ionic Liquids

    Akihiko Takada, Junichi Kadokawa

    Cellulose Communications   2016.4

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

Professional Memberships

  • Japan Occupational Hygiene Association

  • Japan Association of Working Environmental Measurement

  • THe Society of Rheology, Japan

  • Polymer Society Japan

  • Polymer Society Japan

  • Cellulose Society Japan

  • Fiber Society Japan

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Committee Memberships

  • セルロース学会西部支部   幹事   Domestic

    2008.4 - 2024.4   

Academic Activities

  • 実行委員

    セルロース学会第31回年次大会  ( Japan ) 2024.7

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2023

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:4

  • Screening of academic papers

    Role(s): Peer review

    2022

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:5

    Number of peer-reviewed articles in Japanese journals:3

  • 実行委員・発表審査委員長

    第 35 回日本キチン・キトサン学会大会  ( Japan ) 2021.8

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    繊維学会2021年度年次大会  ( Japan ) 2021.6

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2021

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:7

    Number of peer-reviewed articles in Japanese journals:0

  • Screening of academic papers

    Role(s): Peer review

    2019

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:8

    Number of peer-reviewed articles in Japanese journals:1

  • Screening of academic papers

    Role(s): Peer review

    2018

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:3

    Number of peer-reviewed articles in Japanese journals:1

  • 実行委員 International contribution

    International Cellulose Conference  ( Japan ) 2017.10

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2017

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:3

    Number of peer-reviewed articles in Japanese journals:1

  • Screening of academic papers

    Role(s): Peer review

    2016

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:4

    Number of peer-reviewed articles in Japanese journals:2

  • 幹事

    セルロース学会セルロースシンポジウム  ( Japan ) 2015.11

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    Type:Competition, symposium, etc. 

    Number of participants:50

  • 座長(Chairmanship)

    セルロース学会第21回年次大会  ( Japan ) 2014.7 - 2015.7

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    Type:Competition, symposium, etc. 

  • 実行委員

    セルロース学会第21回年次大会  ( Japan ) 2014.7

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    Type:Competition, symposium, etc. 

    Number of participants:300

  • プログラム委員

    第58回レオロジー討論会  ( Japan ) 2010.10

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    Type:Competition, symposium, etc. 

    Number of participants:300

  • 座長(Chairmanship) International contribution

    5th Pacific Rim Conference on Rheology  ( Hokkaido University (Sapporo) Japan ) 2010.8

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship) International contribution

    INTERNATIONAL CONFERENCE ON RECENT ADVANCES IN PHYSICS  ( University of Dhaka, Bangladesh Japan ) 2010.3

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    第57 回レオロジー討論会  ( Japan ) 2009.10

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    広域物性研究会 広島シンポジウム2008  ( Japan ) 2008.10

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    第56 回レオロジー討論会  ( Japan ) 2008.10

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    Type:Competition, symposium, etc. 

  • プログラム委員

    第56回レオロジー討論会  ( Japan ) 2008.10

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    Type:Competition, symposium, etc. 

    Number of participants:300

  • 筆頭幹事

    セルロース学会セルロース屋久島シンポジウム  ( Japan ) 2008.6

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    Type:Competition, symposium, etc. 

    Number of participants:50

  • 幹事

    セルロース学会西部支部セルロースシンポジウム  ( Japan ) 2007.12

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • 座長(Chairmanship)

    第55回レオロジー討論会  ( Japan ) 2007.11

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    Type:Competition, symposium, etc. 

  • プログラム委員

    第55回レオロジー討論会  ( Japan ) 2007.11

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    Type:Competition, symposium, etc. 

    Number of participants:300

  • 座長(Chairmanship)

    繊維学会平成19年度年次大会  ( Japan ) 2007.10

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    Type:Competition, symposium, etc. 

  • Cellulose Communications

    2007.6 - 2024.6

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    Type:Academic society, research group, etc. 

  • 座長(Chairmanship)

    レオロジー討論会  ( Japan ) 2006.11

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    Type:Competition, symposium, etc. 

  • 運営委員

    レオロジー討論会  ( Japan ) 2006.10

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    Type:Competition, symposium, etc. 

    Number of participants:400

  • 座長(Chairmanship)

    繊維学会  ( Japan ) 2006.9

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    Type:Competition, symposium, etc. 

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Research Projects

  • 分子間相互作用の精密制御に基づく環境調和型ナノハイブリッドの創製

    2017 - 2019

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 分子カプセルを利用した3次元規則性超分子構造体の作成と機能開発

    2011 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • イオン液体中の動的秩序構造とそのダイナミクスに関する研究

    Grant number:21015023  2009 - 2010

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Priority Areas

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 分子カプセルを利用した超分子構造体の作成と機能開発

    2008.4 - 2011.3

    科学技術振興事業団 

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    Authorship:Coinvestigator(s) 

    フェノールの環状オリゴマーであり、包摂性を確認できたカリックスアレーンを基本骨格として,これを凝集させ3次元的に,しかも規則的に配列させることで機能的な材料を作成する.さらに、CRの凝集体の内部に微粒子を内包させ(分子カプセル化),CRと微粒子との協奏的凝集状態を作り出しそれぞれの相互作用のちがいによって分子カプセルの凝集状態を変化させることを検討する.これらの検討によって,CRによる分子カプセルの生成とCRの凝集状態の制御,さらに,微粒子を内包した分子カプセルの凝集状態の制御を行う.

  • 分子カプセルを利用した超分子構造体の作成と機能開発

    2008 - 2010

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 濃厚ポリマーブラシの科学と技術

    2008

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Specially Promoted Research

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 濃厚ポリマーブラシの科学と技術

    2007.4 - 2010.3

    文部科学省 

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    Authorship:Coinvestigator(s) 

    固体表面に密にグラフトされた高分子鎖は、分子鎖間の立体障害を避けるべく表面から垂直方向に延伸された分子集合系「ポリマーブラシ」を形成する。ポリマーブラシの構造・物性はグラフト密度に強く依存すると考えられるが、グラフト鎖の表面占有率が約10%から数10%に及ぶ密度領域(濃厚ポリマーブラシ)は、最近まで全く未知・未経験の領域であった。当研究グループは、リビングラジカル重合の利用により、長さの揃ったグラフト鎖からなる濃厚ポリマーブラシの合成に世界に先駆けて成功するとともに、濃厚ブラシ中の柔軟な高分子鎖が、良溶媒中で伸び切り鎖長に匹敵するほど高度に伸長配向するという驚くべき事実を発見した。本研究は、濃厚ポリマーブラシという高分子の結晶、液晶に次ぐ新しい自発配向組織が、様々な基礎および応用科学分野の新しい局面を拓く「シーズ」になりうるという認識の下で、各種の無機および有機材料の表面を対象とする濃厚ポリマーブラシを、(1)リビングラジカル重合法に基づく合成化学、(2)構造・物性科学および(3)機能開発・応用科学という互いにフェーズを異にする3つの切り口から包括的かつ系統的に研究するものである。

  • 液晶構造を有する機能性界面の合成と応用

    2006.4 - 2009.3

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    Authorship:Principal investigator 

    Chiral liquid crystalline surface of polymer liquid crystals such as cellulose derivatives is investigated to be used as advance materials with chiral properties such as optical resolution.

  • テレケリック高分子と結晶性低分子からなる超分子弾性体の構造と性質

    Grant number:18550197  2006 - 2007

    Grants-in-Aid for Scientific Research  Grant-in-Aid for General Research (C)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 液晶構造を有する機能性表面の合成と応用

    Grant number:18655047  2006 - 2007

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Exploratory Research

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    Authorship:Principal investigator  Grant type:Scientific research funding

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Educational Activities

  • 大学院学生および学部学生の環境安全教育・化学物質管理教育

Class subject

  • 高分子材料物性学Ⅰ

    2023.10 - 2023.12   Fall quarter

  • 環境と安全2

    2023.6 - 2023.8   Summer quarter

  • 物質理工学修士実験2

    2023.4 - 2024.3   Full year

  • 物質理工学修士演習1

    2023.4 - 2024.3   Full year

  • 物質理工学修士演習2

    2023.4 - 2024.3   Full year

  • 物質理工学修士実験1

    2023.4 - 2024.3   Full year

  • 環境と安全1

    2023.4 - 2023.6   Spring quarter

  • 高分子材料物性学Ⅰ

    2022.10 - 2022.12   Fall quarter

  • 環境と安全2

    2022.6 - 2022.8   Summer quarter

  • 環境と安全1

    2022.4 - 2022.6   Spring quarter

  • 高分子材料物性学Ⅰ

    2021.10 - 2021.12   Fall quarter

  • 環境と安全2

    2021.6 - 2021.8   Summer quarter

  • 環境と安全1

    2021.4 - 2021.6   Spring quarter

  • 環境と安全2

    2020.6 - 2020.8   Summer quarter

  • 環境と安全1

    2020.4 - 2020.6   Spring quarter

  • 環境と安全(夏期)

    2019.6 - 2019.8   Summer quarter

  • 環境と安全(春期)

    2019.4 - 2019.6   Spring quarter

  • 環境と安全(夏期)

    2018.6 - 2018.8   Summer quarter

  • 環境と安全(春期)

    2018.4 - 2018.6   Spring quarter

  • 環境と安全

    2017.4 - 2017.6   Spring quarter

  • エネルギー物質工学実験II

    2011.10 - 2012.3   Second semester

  • エネルギー物質理工学演習

    2011.10 - 2012.3   Second semester

  • エネルギー物質工学実験II

    2010.10 - 2011.3   Second semester

  • エネルギー物質理工学演習

    2010.10 - 2011.3   Second semester

  • 創造工学科学基礎実験

    2010.10 - 2011.3   Second semester

  • 創造工学科学基礎実験

    2009.10 - 2010.3   Second semester

  • エネルギー物質工学実験II

    2009.10 - 2010.3   Second semester

  • エネルギー物質理工学演習

    2009.10 - 2010.3   Second semester

  • 創造科学工学基礎実験

    2008.10 - 2009.3   Second semester

  • エネルギー物質工学実験II

    2008.10 - 2009.3   Second semester

  • エネルギー物質理工学演習

    2008.10 - 2009.3   Second semester

  • 創造工学基礎実験

    2007.10 - 2008.3   Second semester

  • エネルギー物質工学実験II

    2007.10 - 2008.3   Second semester

  • エネルギー物質理工学演習

    2007.10 - 2008.3   Second semester

  • 創造科学工学基礎実験

    2004.4 - 2004.9   First semester

  • 課題集約演習

    2004.4 - 2004.9   First semester

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FD Participation

  • 2023.2   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2021.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2020.1   Role:Speech   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2019.5   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2019.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.6   Role:Planning   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2017.5   Role:Speech   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2016.12   Role:Speech   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2016.5   Role:Participation   Title:第1回 先導研FD研修会

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2015.5   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2015.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2014.5   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2014.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.5   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2012.5   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2012.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2011.5   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2011.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.5   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.1   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2007.7   Role:Participation   Title:先導研FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2007.4   Role:Participation   Title:平成19年度第1回全学FD

    Organizer:University-wide

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Outline of Social Contribution and International Cooperation activities

  • 高分子学会九州支部有機材料研究会幹事(1997年度)
    高分子学会九州支部若手研究会幹事(1999年度)
    高分子学会主催 青少年のための「ふれあい科学広場」実行委員(1999年度)

Social Activities

  • 大野城ランドセルクラブ

    大野城市教育委員会  大野南小学校  2020.2

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Other

    大野城市市内の小学校において実施する課外科学教室

  • 世界一行きたい科学教室inふくおか

    世界一行きたい科学教室inふくおか 実行委員会  福岡科学館  2019.10

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 春日市立春日野中学校 総合学習 科学実験

    2019.9

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 大野城市心のふるさと館開館1周年記念イベント 科学広場

    大野城市  大野城市心のふるさと館  2019.7

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 大野城ランドセルクラブ(大野城市教育委員会・大野城市PTCA)

    大野南小学校  2019.2

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 世界一行きたい科学教室inふくおか

    世界一行きたい科学教室inふくおか 実行委員会  福岡国際センター  2018.8

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • フクオカ・サイエンスマンス

    福岡県  春日市クローバープラザ  2016.11

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 福岡サイエンスマンス

    福岡県  アクロス福岡  2015.11

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 福岡サイエンスマンス

    福岡県  アクロス福岡  2014.11

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 「― エネルギーを創る、貯める、無駄なく使う ― 」

    福岡県  アクロス福岡  2013.11

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 石炭関連講座「触ってみよう本物の石炭」および電池関連講座「エネルギーを作る。果実で・光で・体温で発電」

    福岡県  アクロス福岡  2012.11

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

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Acceptance of Foreign Researchers, etc.

  • Department of Chemistry, Faculty of Science, Udon Thani Rajabhat University

    Acceptance period: 2023.1   (Period):2weeks to less than 1 month

    Nationality:Thailand

  • Department of Chemistry, Faculty of Science, Udon Thani Rajabhat University

    Acceptance period: 2023.1   (Period):2weeks to less than 1 month

    Nationality:Thailand

  • Department of Chemistry, Faculty of Science, Udon Thani Rajabhat University

    Acceptance period: 2020.10 - 2020.11   (Period):2weeks to less than 1 month

    Nationality:Thailand

Travel Abroad

  • 2017.11 - 2017.12

    Staying countory name 1:Bangladesh   Staying institution name 1:Dhaka University

  • 2010.3

    Staying countory name 1:Bangladesh   Staying institution name 1:Dhaka University

  • 2008.8

    Staying countory name 1:United States   Staying institution name 1:Monterey Conference Center

  • 2007.8

    Staying countory name 1:China   Staying institution name 1:Zhejang University