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저가습연료전지 운전을 위한 술폰산화 멀티블록고분자 전해질막의 개발

Development of Sulfonated Multi-Block Copolymer Membranes for Low RH PEMFC Operation

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  • URLhttps://db.koreascholar.com/Article/Detail/345230
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한국막학회 (The Membrane Society Of Korea)
초록

Novel sulfonated poly(arylene ether sulfone)s multi-block copolymer membranes containing highly sulfonated hydrophilic blocks were synthesized. Different local concentration of sulfonic acid in their hydrophilic blocks affected chemical and physical properties of the SPAES. To investigate the effects of chemical composition on their membrane properties, different hydrophilic oligomers sharing same hydrophobic blocks gave us exact comparison of effect of hydrophilic blocks. The higher concentration of sulfonic acid groups resulted in higher proton conductivity under certain relative humidity conditions than that of the state-of-the-art perfluorinated sulfonic acid membrane and showed that the well-developed phase separation of SPAES.

저자
  • 배병찬(한국에너기술연구원, Korea Institute of Energy Research (KIER)) | Byungchan Bae