Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Fabrication and Characteristics of Partially Covalent-crosslinked Poly(arylene ether sulfone)s for Use in a Fuel Cell

고분자 전해질 연료전지용 부분 공유 가교된 술폰화 폴리아릴렌에테르술폰 막의 제조 및 특성

  • Byun, Hong-Sik (Chemical System Technology, Keimyung University) ;
  • Yoon, Kyung-Seok (Energy Materials Research Center, Korea Research Institute of Chemical Technology) ;
  • Choi, Jong-Ho (Energy Materials Research Center, Korea Research Institute of Chemical Technology) ;
  • Choi, Jun-Kyu (Energy Materials Research Center, Korea Research Institute of Chemical Technology) ;
  • Hong, Sung-kwon (Department of Polymer Science and Engineering, Chungnam National University) ;
  • Hong, Young-Taik (Energy Materials Research Center, Korea Research Institute of Chemical Technology)
  • 변홍식 (계명대학교 화학시스템공학과) ;
  • 윤경석 (한국화학연구원 에너지소재연구센터) ;
  • 최종호 (한국화학연구원 에너지소재연구센터) ;
  • 최준규 (한국화학연구원 에너지소재연구센터) ;
  • 홍성권 (충남대학교 고분자공학과) ;
  • 홍영택 (한국화학연구원 에너지소재연구센터)
  • Published : 2008.12.30
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Abstract

Covalent-crosslinked sulfonated poly(arylene ether sulfone) (SPAES) copolymers were synthesized copolymerization technique and additionally crosslinked with divinylbenzene (DVB). To optimize the reaction condition, a concentration of crosslinking agent and a reaction time were varied in the ranges of $30{\sim}90\;v/v%$ and $30{\sim}720\;min$. The properties of the crosslinked membranes were investigated by SEM, TGA and the measurement of proton conductivity. It was found that the proton conductivity of crosslinked membranes decreased depending on a degree of crosslinking while water uptake and methanol permeability reduced.

술폰화 폴리아릴렌에테르술폰 공중합체를 직접 중합법으로 합성하고 공유 가교하여 연료전지용 고분자 전해질 막을 제조하였다. 최적의 전해질 막 제조를 위하여 가교제의농도를 $30{\sim}90\;v/v%$ 및 가교시간을 30분 내지 720분의 범위에서 다양한 조성의 전해질 막 제조실험이 수행되었으며 FT-IR분광법 및 열 중량분석, 수소 이온 전도도 측정 등을 통해 전해질 막의 기본 특성들을 평가하였다. 수소 이온 전도도는 가교도에 따라 감소하는 것으로 나타났으며, 물 흡수율 및 메탄올 투과도도 함께 낮아짐을 알 수 있었다.

Keywords

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