Synthesis and Properties of Fluorocarbon–Hydrocarbon Hybrid Block Copolymers with Perfluorosulfonimide Acid | Zendy

Naohiro Hoshikawa | Zendy; A. Shinohara | Zendy; Yoichi Hosokawa | Zendy; Naoki Hasegawa | Zendy; Masaya Kawasumi | Zendy

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Synthesis and Properties of Fluorocarbon–Hydrocarbon Hybrid Block Copolymers with Perfluorosulfonimide Acid

Author(s) -

Naohiro Hoshikawa,

A. Shinohara,

Yoichi Hosokawa,

Naoki Hasegawa,

Masaya Kawasumi

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c01972

Subject(s) - copolymer , nafion , fluorocarbon , ether , polymer chemistry , hydrocarbon , electrolyte , conductivity , materials science , chemistry , chemical engineering , organic chemistry , polymer , electrochemistry , electrode , engineering

Novel fluorocarbon-hydrocarbon hybrid block copolymer electrolytes were synthesized. The block copolymer electrolytes consist of poly(perfluoropropyl sulfonimide) (PC3SI) as a perfluorinated hydrophilic segment and poly(ether ether sulfone) as a hydrocarbon hydrophobic segment. The sulfonimide group of poly(perfluoropropyl sulfonimide) has superacidity, very low equivalent weight (EW = 293 g/equiv), and a proton conductivity of 1.2 × 10 -2 S/cm under dry conditions and 25 °C, although soluble in water. The proton conductivity of the block copolymer was 1.7 × 10 -3 S/cm at 20% relative humidity and 25 °C, which is three times as high as that of Nafion 112.

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