Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Synthesis and Characterization of Sulfonated Poly (Arylene ether Sulfone) Multi-Block Copolymer for PEMFC Application

고분자연료전지용 설폰산화 폴리아릴렌에테르설폰 멀티블록공중합체의 합성 및 특성 분석

  • Ahn, Jinju (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research (KIER)) ;
  • Choi, Young-Woo (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research (KIER)) ;
  • Yang, Tae-Hyun (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research (KIER)) ;
  • Kim, Chang-Soo (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research (KIER)) ;
  • Bae, Byungchan (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research (KIER))
  • 안진주 (한국에너지기술연구원 수소연료전지연구단) ;
  • 최영우 (한국에너지기술연구원 수소연료전지연구단) ;
  • 양태현 (한국에너지기술연구원 수소연료전지연구단) ;
  • 김창수 (한국에너지기술연구원 수소연료전지연구단) ;
  • 배병찬 (한국에너지기술연구원 수소연료전지연구단)
  • Received : 2012.09.28
  • Accepted : 2012.10.26
  • Published : 2012.10.31
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Abstract

Multi-block sulfonated poly (arylene ether sulfone) (SPES) membranes were synthesized by post-sulfonation and its properties characterized. Two types of oligomers, F-terminated and OH-terminated telechelic oligomers, were synthesized by controlling the feed ratio of dihydroxyl- and difluoro-monomers. Their number of repeating unit (X and Y) was analyzed by GPC and $^1H$ NMR. Copolymerization with F-terminated and OH-terminated telechelic oligomers via nucleophilic aromatic substitution, gave high-molecular-weight multi-block PESs. Each block length was controlled to have different values with X5Y10, X10Y10, X20Y10 and X20Y20. Successful polymerization and its successful sulfonation was confirmed by GPC and $^1H$ NMR. RH dependence of proton conductivity of multi-block SPES membranes was comparable to that of Nafion 212 at high RH conditions.

Keywords

References

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  1. Synthesis and Characterization of Multi-Block Sulfonated Poly (Arylene Ether Sulfone) Polymer Membrane with Different Hydrophilic Moieties for PEMFC vol.18, pp.2, 2015, https://doi.org/10.5229/JKES.2015.18.2.75