Graft octa-sulfonated poly(arylene ether) for high performance proton exchange membrane
作者： Sinan Feng , Guibin Wang , Haibo Zhang , Jinhui Pang
DOI: 10.1039/C5TA03088A
关键词:
摘要: A series of octa-sulfonated poly(arylene ether)s (PAEs) was prepared via a low-temperature grafting reaction and subsequent postsulfonation. The rigid backbone with high molecular weight is conducive to higher integrity the hydrophobic domain. And ionic clusters are expected promote appearance phase separation. These membranes, ion exchange capacity (IEC) values ranging from 1.19 1.90 meq. g−1, exhibited excellent dimensional stability, mechanical properties oxidative stability. membrane IEC (>1.4 g−1) adequate conductivity (>100 mS cm−1) in water at 80 °C. Furthermore, = g−1 comparable Nafion 117 under various humidity levels. In addition, SAXS profiles confirmed well-defined phase-separated morphology SPAE-x. DMFC single cell performance demonstrates that SPAE-x good candidates for proton membranes fuel applications.
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