Branched and cross-linked proton conductive poly(arylene ether sulfone) lonomers: Synthesis and properties

Yohei Chikashige, Yoshiki Chikyu, Kenji Miyatake, Masahiro Watanabe*

*この研究の対応する著者

研究成果: Article査読

38 被引用数 (Scopus)

抄録

A series of branched and cross-linked poly (arylene ether sulfone) ionomers containing sulfofluorenyl groups, 2b-e were synthesized in order to investigate the effect of these chemical modifications on the properties. Ionomers 2b-e gave a flexible, ductile, and transparent membrane by casting from DMAc solution. The branching and cross-linking were effective to improve the dimensional stability under wet conditions without losing their high thermal, oxidative, and hydrolytic stability. The cross-linked ionomer 2e (IEC = 2.63 meq-g-1) membrane showed high proton conductivity of 0.2 S · cm-1 at 87% RH and 0.02 S · cm-1 at 57% RH. The branched ionomer 2b membrane was durable in proton conductivity for almost 2 months without any chemical degradation.

本文言語English
ページ(範囲)1334-1343
ページ数10
ジャーナルMacromolecular Chemistry and Physics
207
15
DOI
出版ステータスPublished - 2006 8 2
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • 有機化学
  • ポリマーおよびプラスチック
  • 材料化学

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