期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 127, 期 3, 页码 1981-1988出版社
WILEY
DOI: 10.1002/app.37579
关键词
fuel cell; proton exchange membrane (PEM); crosslinkable; ionomer
资金
- China High-Tech Development 863 Program [2007AA03Z217]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme
- Guangdong Province Science Tech Bureau [2008A080800024, 10151027501000096]
- Guangdong Education Bureau [cxzd1004]
- Research Fund for the Doctoral Program of Higher Education of China [200805581028]
- Chinese Universities Basic Research
Two series of sulfonated poly(arylene ether nitrile ketone) ionomers containing potential crosslinkable nitrile groups were synthesized in high yield by direct aromatic nucleophilic polycondensation of 1,4-bis-(4-hydroxyphenyl)-2,3-dicyano -naphthalene (3) with different molar ratio of disodium 5,5'-carbonyl-bis-(2-fluorobenzene-sulfonate) (4) to 5,5'-carbonyl-bis-(2-fluorobenzene) (5) or 4,4-biphenol (7). Subsequently, the sulfonated polymeric ionomers were in situ crosslinked when cast into membranes from solution at 180 degrees C under nitrogen protection. The structure of the synthesized polymers was characterized by H-1-nuclear magnetic resonance (NMR), Fourier-transform infrared spectra, and elemental analysis. Comparing with the original polymeric membranes, the crosslinked membranes showed much better thermal and hydrolytic stabilities and superior mechanical properties as well as much lower swelling behavior, which were even better than Nafion 117 membrane. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 127: 1981-1988, 2013
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