Viscoelastic change of block copolymer ion gels in a photo-switchable azobenzene ionic liquid triggered by light†,Chemical Communications

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Viscoelastic change of block copolymer ion gels in a photo-switchable azobenzene ionic liquid triggered by light†
Chemical Communications ( IF 4.3 ) Pub Date : 2018-12-06 00:00:00 , DOI: 10.1039/c8cc08203k
Caihong Wang _{1,

2,

3,

4,

5} , Kei Hashimoto _{6,

7,

8,

9} , Ryota Tamate _{6,

7,

8,

9} , Hisashi Kokubo _{6,

7,

8,

9} , Ken Morishima _{9,

10,

11,

12} , Xiang Li _{9,

13,

14,

15} , Mitsuhiro Shibayama _{9,

13,

14,

15} , Fengniu Lu _{9,

16,

17,

18} , Takashi Nakanishi _{9,

16,

17,

18} , Masayoshi Watanabe _{6,

7,

8,

9}

Affiliation

Department of Chemical Machinery and Control Engineering
School of Chemical Engineering
Sichuan University
Sichuan 610065
China
Department of Chemistry and Biotechnology
Yokohama National University
Hodogaya-ku
Japan
Institute for Integrated Radiation and Nuclear Science
Kyoto University
Kumatori
Institute for Solid State Physics
The University of Tokyo
Kashiwa
International Center for Materials Nanoarchitectonics (WPI-MANA)
National Institute for Materials Science (NIMS)
Tsukuba 305-0044

A photo-switchable ionic liquid solvent bearing an azobenzene moiety induced a viscoelastic change of block copolymer ion gels by light. ABA triblock copolymers having poly(phenethyl methacrylate) and poly(benzyl methacrylate) as A blocks exhibited opposite photoinduced rheological responses although they had only a tiny structural difference in the alkyl chain length.

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