KOKUBO Hisashi


Faculty of Engineering, Division of Materials Science and Chemical Engineering


Research Fellow

Date of Birth


Research Fields, Keywords

Polymer Chemistry, Functional organic materials

Mail Address

E-mail address

Graduating School 【 display / non-display


    Tokyo University of Science   Faculty of Science and Engineering   Graduated

Graduate School 【 display / non-display


    Tokyo Institute of Technology  Graduate School, Division of Integrated Science and Engineering  Doctor Course  Completed


    Tokyo Institute of Technology  Graduate School, Division of Integrated Science and Engineering  Master Course  Completed

External Career 【 display / non-display

  • 2013

    Monash University   Department of Chemistry   Visit Researcher  

  • 2003.04

    Research Fellow of the Japan Society of the Promotion of Science   Research Fellowship for Young Scientists of the Japan Society for the Promotion of Science  

Academic Society Affiliations 【 display / non-display


    The Chemistry Society of Japan


    The Society of Polymer Science, Japan


    The Electrochemistry Societyl of Japan

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Polymer chemistry


Books 【 display / non-display

  • Soft Actuators ~Materials, Modeling, Applications, and Future Perspectives

    渡邉 正義、今泉 暁、安田 友洋、小久保 尚 (Part: Joint Work )

    Springer  2014 ISBN: 978-4-431-547

Papers 【 display / non-display

  • Solvation Structure of Poly(benzyl methacrylate) in a Solvate Ionic Liquid: Preferential Solvation of Li–Glyme Complex Cation

    Kei Hashimoto, Yumi Kobayashi, Hisashi Kokubo, Takeshi Ueki, Koji Ohara, Kenta Fujii, Masayoshi Watanabe

    Journal of Physical Chemistry B ( ACS Publications )  123 ( 18 )   4098 - 4107   2019.04

    Joint Work


  • Solid polymer electrolytes based on polystyrene‐polyether block copolymers having branched ether structure

    Hisashi Kokubo,Eiji Nakazawa,Masayoshi Watanabe

    Polymers For Advanced Technologies   30 ( 3 )   736 - 742   2019.03  [Refereed]

    Joint Work


  • Polymer electrolytes based on a homogeneous poly(ethylene glycol)network and their application to polymer actuators

    Ryosuke Shioiri, Hisashi Kokubo, Tatsuhiro Horii, Yumi Kobayashi, Kei Hashimoto,Kazuhide Ueno, Masayoshi Watanabe

    Electrochimica Acta     2019  [Refereed]

    Joint Work


  • Viscoelastic change of block copolymer ion gels in a photo-switchable azobenzene ionic liquid triggered by light

    Caihong Wang,Kei Hashimoto,Ryota Tamate,Hisashi Kokubo,Ken Morishima,Xiang Li,Mitsuhiro Shibayama,Fengniu Lu,Takashi Nakanishi,Masayoshi Watanabe

    Chem. Commun.     2019  [Refereed]

    Joint Work


  • Photo/thermoresponsive ABC triblock copolymer-based ion gels: photoinduced structural transitions

    Ryota Tamate,Ryoji Usui,Kei Hashimoto,Yuzo Kitazawa,Hisashi Kokubo,Masayoshi Watanabe

    Soft Matter ( ROYAL SOC CHEMISTRY )  14 ( 45 )   9088 - 9095   2018.12  [Refereed]

    Joint Work

    Web of Science DOI PubMed

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Academic Awards Received 【 display / non-display

  • Award for Encouragement of Research in Polymer Science; The Society of Polymer Science, Japan (2009)


Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2017.04  -  2020.03 

Presentations 【 display / non-display

  • Development of Polymer Electrolytes Consisting of Homogeneous Polymer Network and Application to Polymer Actuator

    H. Kokubo, R. Shioiri, S. Ishii, T. Horii, K. Hashimoto, K. Ueno, M. Watanabe

    The 15th Pacific Polymer Conference (PPC-15)   (Xiamen International Conference & Exhibition Center, China)  2017.12.12  

  • Homogeneous Tetra-PEG Network Containing Ionic Liquid Synthesized via Michael Addition Reaction and Its Application to Polymer Actuator

    H. Kokubo

    2nd YNU-ACES Workshop on Energy Related Materials and Devices  (Kanagawa Prefectural Hall)  2017.03.11  

  • Development of polythiophene-PEO multi-block copolymer with electron and ion mixed-conduction

    Gelsympo2012  2012.10.11  

  • Preparation of Photochromic Ionic Liquids and Their Functionalization

    The 6th International Symposium on Organic Photochromism (ISOP2010)  2010.10.20  

  • Development of Ion Gel Electrolytes for Polymer Actuators

    XII International Symposium on Polymer Electrolytes (ISPE-12)  2010.09.02  

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Social Contribution(Extension lecture) 【 display / non-display

  • The 16th International Symposium on Polymer Electrolytes (ISPE-16)


  • 6th International Symposium on Organic Photochromism (ISOP2010)


  • International Conference on Science and Technology of Synthetic Metals 2010 (ICSM2010)


  • 4th International Conference on Polymer Batteries and Fuel Cells (PBFC2009)


  • 2nd International Congress on Ionic Liquids (COIL-2)


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