Synthesis and properties of novel sulfonated polyimides derived from naphthalenic dianhydride for fuel cell application

被引：25

作者：

Chen, Xinbing ^{[2
]}

Yin, Yan ^{[2
]}

Chen, Pei ^{[1
]}

Kita, Hidetoshi ^{[1
]}

Okamoto, Ken-Ichi ^{[1
]}

机构：

[1] Yamaguchi Univ, Grad Sch Sci & Engn, Yamaguchi 7558611, Japan

[2] Yamaguchi Univ, Venture Business Lab, Yamaguchi, Japan

来源：

JOURNAL OF MEMBRANE SCIENCE | 2008年 / 313卷 / 1-2期

关键词：

sulfonated polyimides; proton conductivity; water stability; polymer electrolyte membrane; fuel cell;

D O I：

10.1016/j.memsci.2007.12.069

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A series of sulfonated polyimides (SPI) ionomers were synthesized from a new flexible dianhydride of 4,4'-ketone dinaphthalene tetracarboxylic dianhydride (KDNTDA), a sulfonated diamine of 4,4'-bis(4-aminophenoxy)biphenyl-3,3'-disulfonic acid and nonsulfonated diamines including dimethylsiloxane oligomer-based diamine. KDNTDA-based SPIs displayed good solubility in common aprotic solvents, which would provide an advantage of easy processing, being different from SPIs derived from 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA). They showed reasonably high proton conductivities and anisotropic membrane swelling with 2-3 times larger swelling in thickness than in plane. KDNTDA-based SPIs displayed slightly lower water stability than that of NTDA-based ones. On the other hand, the branched/crosslinked KDNTDA-based SPI membrane displayed higher water stability and kept high mechanical property and proton conductivity even after the aging in water at 130 degrees C for 300 h. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：106 / 119

页数：14

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