Synthesis and properties of sulfonated polyimides from sulfophenoxy benzidines

被引：12

作者：

Suto, Yoshiki ^{[1
]}

Yin, Yan ^{[1
]}

Kita, Hidetoshi ^{[1
]}

Okamoto, Ken-ichi ^{[1
]}

机构：

[1] Yamaguchi Univ, Fac Engn, Dept Adv Mat Sci & Engn, Ube, Yamaguchi 7558611, Japan

来源：

JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY | 2006年 / 19卷 / 02期

关键词：

sulfonated polyimides; proton conductivity; water stability;

D O I：

10.2494/photopolymer.19.273

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Novel sulfonated diamine isomers, 2,2 '-bis(4-sulfophenoxy)benzidine (2,2 '-BSPOB) and 3,3 '-bis(4-sulfophenoxy)benzidine (3,3 '-BSPOB), were prepared by direct sulfonation with fuming sulfuric acid from corresponding diamines of 2,2 '(or 3,3 ')-bisphenoxybenzidine. Sulfonated polyimides (SPIs) were synthesized from these sulfonated diamines of BSPOB and 1,4,5,8-naphthlene tetracarboxylic dianhydride (NTDA) via polycondensation. Tough and ductile membranes were obtained by solution casting method. The SPI membranes with reasonable ion exchange capacities (IECs) displayed high proton conductivity and excellent water stability.

引用

页码：273 / 274

页数：2

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