공업화학 (Applied Chemistry for Engineering)

  • 제19권2호
  • /
  • Pages.205-208
  • /
  • 2008
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  • 1225-0112(pISSN)
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  • 2288-4505(eISSN)
한국공업화학회 (The Korean Society of Industrial and Engineering Chemistry)
권호 표지

술폰화된 PolySEBS/PS Blending 필름의 제조

Preparation of Sulfonated PolySEBS/PS Blending Films

  • 장석용 (한국산업기술대학교 지식기반기술.에너지대학원) ;
  • 한신호 (한국산업기술대학교 지식기반기술.에너지대학원)
  • Jang, Suk-Yong (Graduate School of Knowledge Based Technology and Energy, Korea Polytechnic University) ;
  • Han, Sien-Ho (Graduate School of Knowledge Based Technology and Energy, Korea Polytechnic University)
  • 투고 : 2008.01.16
  • 심사 : 2008.02.04
  • 발행 : 2008.04.10
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초록

저가인 aromatic elastomer polymer인 polySEBS와 PS의 방향족 작용기에 술폰기를 도입시킴으로써 sulfonated polySEBS과 sulfonated PS를 얻었다. 이 술폰화된 고분자를 활용하여 고분자 전해질 연료전지의 이온 교환막으로 사용될 수 있는 새로운 sulfonated polySEBS/sulfonated PS blending films를 제조하였다. 이 필름들의 수소이온 전도도는 sulfonated polySEBS와 sulfonated PS의 혼합비에 따라 $10^{-2}{\sim}10^{-3}S/cm$로 다양하게 나타났다. 특히, sulfonated polySEBS 10.0 g에 sulfonated PS를 0.5 g 첨가하여 제조한 film이 0.75 meq/g의 이온교환용량 및 25%의 함수율과 함께 가장 우수한 0.07 S/cm의 이온전도도를 나타냈다.

Sulfonated polySEBS and sulfonated PS were synthesized by sulfonation at the aromatic group of polySEBS and PS. Novel sulfonated polySEBS/sulfonated PS blending films for the ion exchange membrane of polymer electrolyte fuel cell were prepared from these sulfonated polymers. The proton conductivities of these blending films were varied in $10^{-2}{\sim}10^{-3}S/cm$ with the blending ratio of sulfonated polySEBS/sulfonated PS. Especially, the film prepared from the addition of the sulfonated PS (0.5 g) in the sulfonated polySEBS (10.0 g) has the best proton conductivity (0.07 S/cm) with ion exchange capacity (0.75 meq/g) and water uptake (25%).

키워드

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