Synthesis and properties of sulfonated poly(arylene ether)s containing azole groups

Byungchan Bae, Shinya Kawamura, Kenji Miyatake*, Masahiro Watanabe

*この研究の対応する著者

研究成果: Article査読

14 被引用数 (Scopus)

抄録

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 °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.

本文言語English
ページ(範囲)3863-3873
ページ数11
ジャーナルJournal of Polymer Science, Part A: Polymer Chemistry
49
17
DOI
出版ステータスPublished - 2011 9 1
外部発表はい

ASJC Scopus subject areas

  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

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