Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Preparation and Properties of Sulfonated Poly(ether Sulfone)s Containing BFBN for PEMFC

PEMFC용 고분자 전해질 막을 위한 BFBN을 포함한 sulfonated poly(ether sulfone)s의 합성 및 특성

  • 임영돈 (건국대학교 대학원 응용화학전공) ;
  • 서동완 (건국대학교 대학원 응용화학전공) ;
  • 이현철 (건국대학교 대학원 응용화학전공) ;
  • 진현미 (건국대학교 대학원 응용화학전공) ;
  • 후세인 (건국대학교 대학원 응용화학전공) ;
  • 정인석 (건국대학교 대학원 응용화학전공) ;
  • 김환기 (건국대학교 대학원 응용화학전공)
  • Received : 2011.06.23
  • Accepted : 2011.08.22
  • Published : 2011.10.30
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Abstract

Sulfonated poly (ether sulfone)s containing BFBN were prepared from 2,3-bis(4-fluorophenyl)-2-butenedinitrile , 4,4-sulfonyldiphenol and sulfonated 4,4'-difluorodiphenylsulfone sodium salt using potassium carbonate, and followed acidification reaction with 1M $H_2SO_4$. BFBN was prepared from 4-fluorobenzylcyanide, $CCl_4$, NaOH using trimethylbenzylammoniumchloride . Sulfonated poly(ether sulfone)s containing BFBN were studied by FT-IR, $^1H$-NMR spectroscopy, and thermo gravimetric analysis (TGA). The water uptake of synthesized S-PBFBN membranes exhibit 31~62% compared with 28% of Nafion 211. The S-PBFBN membranes exhibit proton conductivities ($80^{\circ}C$, RH 100) of 53.8~117.4 mS/cm compared with 137.4 mS/cm of Nafion 211.

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References

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