Locally and Densely Sulfonated Poly(ether sulfone)s as Proton Exchange Membrane

被引：192

作者：

Matsumoto, Kazuya ^{[1
]}

Higashihara, Tomoya ^{[1
]}

Ueda, Mitsuru ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Organ & Polymer Mat, Grad Sch Sci & Engn, Meguro Ku, Tokyo 1528552, Japan

来源：

MACROMOLECULES | 2009年 / 42卷 / 04期

关键词：

FUEL-CELL APPLICATIONS; ACID GROUPS; END-GROUPS; BRANCHED POLY(ETHER-KETONE)S; POLY(ARYLENE ETHER)S; COPOLYMERS; IONOMERS; POLYIMIDE; POLYMERS; KETONE)S;

D O I：

10.1021/ma802637w

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

New locally and densely sulfonated poly(ether sulfone)S Were Successfully prepared for fuel cell applications by the nucleophilic substitution of 4,4'-dichlorodiphenylsulfone with 1,2,4,5-tetrakis([1,1'-biphenyl]-2-oxy)-3,6-bis(4-hydroxyphenoxy)benzene and 2,2-bis(4-liydroxyphenyl)hexafluoropropane, followed by sulfonation using chlorosulfonic acid. The polymers gave tough, flexible, and transparent membranes by solvent casting. The large difference in polarity between the locally and densely sulfonated units and hydrophobic units of the polymers resulted in the formation of well-defined phase-separated structures, which induced efficient proton Conduction in a wide range of 30 - 95% RH at 80 degrees C.

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页码：1161 / 1166

页数：6

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