期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 49, 期 17, 页码 3863-3873出版社
WILEY
DOI: 10.1002/pola.24824
关键词
azoles; block copolymers; ionomers; poly(ether sulfones); sulfonation
资金
- New Energy and Industrial Technology Development Organization (NEDO)
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) Japan [23350089, 23656427]
- Grants-in-Aid for Scientific Research [23350089, 23656427] Funding Source: KAKEN
Random and multiblock sulfonated poly(arylene ether sulfone)s (SPEs) containing various azole groups such as oxadiazole and triazole were synthesized and characterized for fuel cell application. Successful preparation of SPE membranes depended on the structure of azole groups, which affected solubility of precursors and the resulting SPEs. Although oxadiazole groups were incorporated into hydrophobic component, they were found to be hydrophilic to give higher proton conductivity. Introduction of oxadiazole groups into random SPE gave comparable proton conductivity to that of Nafion NRE at >60% relative humidity at 80 degrees C. Block copolymer structure further increased the proton diffusion coefficient without increasing ion exchange capacity. Hydrolytic and oxidative stability of the SPE membranes was affected by both hydrophilic and hydrophobic components. Oxadiazole groups gave negative impact on hydrolytic and mechanical stability to the SPE membranes. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 3863 3873, 2011
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