Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Preparation and Their Characterization of Blended Polymer Electrolyte Membranes of Polysulfone and Sulfonated Poly(ether ether ketone)

Polysulfone/SPEEK 블랜드 고분자 전해질 막 제조 및 특성 연구

  • Cheon, Hun-Sang (Department of Chemical Engineering, Hanbat National University) ;
  • Oh, Min (Department of Chemical Engineering, Hanbat National University) ;
  • Hong, Seong-Uk (Department of Chemical Engineering, Hanbat National University)
  • 천훈상 (국립한밭대학교 화학공학과) ;
  • 오민 (국립한밭대학교 화학공학과) ;
  • 홍성욱 (국립한밭대학교 화학공학과)
  • Published : 2003.03.01
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Abstract

Poly(ether ether ketone)(PEEK) was sulfonated using sulfuric acid and blended with polysulfone with various ratios. The blended polymer electrolyte membranes were characterized in terms of methanol permeability, proton conductivity and ion exchange capacity. As the amount of sulfonated PEEK increased, both methanol permeability and proton conductivity increased. This was due to the increase of ion exchange capacity. The experimental results indicated that the blend membrane with 20% polysulfone was the best choice In terms of the ratio of proton conductivity to methanol permeability.

Poly(ether ether ketone)(PEEK)를 황산을 사용하여 설폰화시킨 후 폴리설폰과 다양한 조성으로 혼합하여 블렌드 고분자 전해질 막을 제조하였고 조성의 변화에 따른 메탄을 투과도, 수소이온전도도, 그리고 이온교환용량의 변화를 측정하였다. 폴리설폰의 경우 이온전도도는 낮은 반면에 메탄올에 대한 저항은 우수하였다. 그러나, 설폰화된 PEEK의 양이 증가함에 따라 메탄을 투과도와 수소이온전도도가 함께 증가하였다. 이온전도도와 메탄을 투과도의 비로부터 폴리설폰의 양이 20%일 때 가장 좋은 선택성을 가지는 것을 알 수 있었다.

Keywords

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