期刊
HIGH PERFORMANCE POLYMERS
卷 31, 期 5, 页码 528-537出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0954008318775788
关键词
Sulfonated poly(arylene ether ketone); sulfoalkylamine; proton exchange membranes; fuel cells
资金
- Natural Science Foundation of China [21474036]
A series of side-chain-type sulfonated poly(arylene ether ketone)s with high ion exchange capacity (IEC) values were prepared by polycondensation reaction of 4,4 '-difluorobenzophenone with 2,2 '-bis(3-amino-4-hydroxyphenyl) and bisphenol A, followed by post-grafting reaction using 1,4-butanesultone. For these obtained membranes, sulfoalkylamine functionalized poly(ether ether ketone) (SAm-PEEK)-0.8 with the highest IEC of 3.42 mequiv. g(-1) displayed the highest proton conductivity of 0.11 S cm(-1) at 25 degrees C and 0.167 S cm(-1) at 60 degrees C, respectively. The morphology of these membranes was investigated by transmission electron microscope analysis. The result showed that these membranes exhibited well-connected hydrophilic channels due to their high IEC values and densely populated flexible acid side chains. Owing to their low methanol permeability and high selectivity, SAm-PEEK-x membranes are promising candidates for direct methanol fuel cell applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据