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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

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.

Acknowledgement

Supported by : 건국대학교

References

  1. K. A. Mauritz and R. B. Moore, "State of understanding of Nafion." Chem. Rev. Vol. 104, No. 10, 2004, p. 4535.
  2. D. G. Baird, J. Huang, and J. E. McGrath, "Polymer electrolyte membrane fuel cell" Plastic Eng., Vol. 59, No. 12, 2003, p. 46.
  3. 이원용, 정귀성, 유상필, 업석기, 김창수, "가정용 고분자연료전지 시스템의 운전방법에 다른 성능비교", 한국수소 및 신에너지학회 논문집, Vol. 16, No. 4, 2005, pp. 364-371.
  4. J. M. Bae, I. Honma, M. Murata, T. Yamamoto, M. Rikukawa, and N. Ogata, "Properties of selected sulfonated polymers as proton-conducting electrolytes for polymer electrolyte fuel cells", Solid State Ionics, Vol. 147, No. 1, 2002, p. 189. https://doi.org/10.1016/S0167-2738(02)00011-5
  5. L. Wang, Y. Z. Meng, S. J. Wang, and A. S. Hay, "Synthesis and Sulfonation of Poly (arylene ether)s Containing Tetraphenyl Methane Moieties", Journal of Polymer Science: Part A: Polymer Chemistry, Vol. 42, No. 7, 2004, p. 1779. https://doi.org/10.1002/pola.20013
  6. F. Wang, M. Hickner, Q. Ji, W. Harrison, J. Mecham, T. A. Zawodzinski, and J. E. McGrath, "Synthesis of highly sulfonated poly(arylene ether sulfone) random (statistical) copolymers via direct polymerization.", Macromolecular Symposia, Vol. 175, 2001, p. 387. https://doi.org/10.1002/1521-3900(200110)175:1<387::AID-MASY387>3.0.CO;2-1
  7. K. Matsumoto, T. Higashihara, and M. Ueda, "Locally and Densely Sulfonated Poly (ether sulfone)s as Proton Exchange Membrane", Macromolecules, Vol. 42, No. 4, 2009, p. 1161. https://doi.org/10.1021/ma802637w