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KMID : 1059520090530030345
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Journal of the Korean Chemical Society
2009 Volume.53 No. 3 p.345 ~ p.354
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Development of Crosslinked Sulfonated Poly(ether sulfone)s as Novel Polymer Electrolyte Membranes
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Oh Young-Seok
Lee Myung-Gun
Kim Tae-Hyun
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Abstract
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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®.
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KEYWORD
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Polymer electrolyte membrane, Sulfonated poly(ether sulfone)s, Crosslinking, Proton conductivity, Selectivity
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