• Title/Summary/Keyword: 술폰화된 에터 술폰계 고분자

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Development of Crosslinked Sulfonated Poly(ether sulfone)s as Novel Polymer Electrolyte Membranes (새로운 연료전지용 술폰화된 PES계 가교 고분자 전해질 막의 개발)

  • Oh, Young-Seok;Lee, Myung-Gun;Kim, Tae-Hyun
    • Journal of the Korean Chemical Society
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    • v.53 no.3
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    • pp.345-354
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    • 2009
  • Sulfonated poly(ether sulfone)s (PESs) with a network structure were prepared by heat-induced crosslinking of the allyl-terminated telechelic sulfone polymers using a bisazide and their structure was analyzed by $^1H$ NMR. Having both uniform distribution of the hydrophilic conductive sites and controlled hydrophobic nature by minimized crosslinking, the crosslinked polymer (PES-60) membrane offered excellent proton conductivity at high temperature with a good thermal stability. In addition, selectivity of the crosslinked membrane (PES-60) was more than three times than that of Nafion$^{(R)}$.