Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)

The Polymer Society of Korea (한국고분자학회)
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Proton Selectivity through Poly(vinyl alcohol) Based Polymer Electrolyte Membranes for Direct Methanol Fuel Cell

  • Higa, Mitsuru (Graduate School of Science and Engineering, Yamaguchi University) ;
  • Sugita, Mikinori (Graduate School of Science and Engineering, Yamaguchi University) ;
  • Maesowa, Shinichi (Graduate School of Science and Engineering, Yamaguchi University) ;
  • Hatemura, Kentaro (Graduate School of Science and Engineering, Yamaguchi University) ;
  • Endo, Nobutaka (Graduate School of Science and Engineering, Yamaguchi University)
  • Published : 2006.10.13
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Abstract

We have prepared polymer electrolyte membranes (PEMs) for DMFC from polymer mixture of poly(vinyl alcohol) and poly(vinyl alcohol-co-2-acrylamido-2-methylpropane sulfonic acid) (AP-2) changing the AP-2 content. The proton conductivity(${\Box}$) and methanol permeability(P) of the PEMs increase with increasing AP-2 content because the water content of the PEMs increases with increasing AP-2 content. The proton permselectivity of the PEMs, which is defined as ${\Box}={\Box}/P$, indicates higher values than that of $Nafion{(R)}$117.

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