Cross-linked sulfonated poly(phathalazinone ether ketone)s for PEM fuel cell application as proton-exchange membrane

被引：74

作者：

Ding, F. C. ^{[1
]}

Wang, S. J. ^{[1
]}

Xiao, M. ^{[1
]}

Meng, Y. Z. ^{[1
]}

机构：

[1] San Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Inst Optoelect & Funct Composite Mat, Guangzhou 510275, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2007年 / 164卷 / 02期

关键词：

cross-linking; proton conductivity; sulfonation; membrane;

D O I：

10.1016/j.jpowsour.2006.11.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The cross-linkable sulfonated ploy(arylene ether)s derived from 3,3'-diallyl-4,4'-dihydroxybiphenyl, bisphthalazinone, 4,4-difluorobenzophenone (DFBP) and sulfonated 4,4'-diflourobenzophenone (SDFBP) were synthesized over a wide range of DFBP/SDFBP molar ratios. The resulting sulfonated poly(arylene ether)s with high inherent viscosity (1.02-1.29 dL g(-1)) are soluble in polar organic solvents and can form flexible and transparent membranes by casting from their solution. Cross-linking reaction was carried out using the thermal activated radical cross-linking agent (TARC) at 140 degrees C. The comprehensive properties of the virgin and the cross-linked membranes were compared accordingly. The results showed that the cross-linked membranes revealed the better mechanical, oxidative and dimensional stabilities together with high proton conductivity (9.675 x 10(-3) S cm(-1)) at 25 degrees C under 100% relative humidity. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：488 / 495

页数：8

共 49 条

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