화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.21, 851-855, January, 2015
DOI10.1016/j.jiec.2014.04.022  Export Citation
Solvent induced conversion of microdomain structure in block copolymer electrolyte thin films
Jaehyun Hur, and Joonwon Bae1, †
  • Department of Chemical and Biological Engineering, Gachon University, Seongnam 461-701, Gyeonggi, Republic of Korea
  • 1Department of Applied Chemistry, Dongduk Women’s University, Seoul 136-714, Republic of Korea
E-mail:
The block copolymer electrolytes have become interesting owing to their potential applications for proton exchange membranes in fuel cells. Thus an attention has been paid to understand the structure-property relation in block copolymer electrolytes. In particular, the morphology-performance correlation is one of the most important characteristics of block copolymer electrolytes, because the primary performances such as transport properties are strongly dependent on the morphology. Therefore, in this study, the solvent induced microstructure conversion in sulfonated polystyrene-bhydrogenated polybutadiene-b-polystyrene block copolymer electrolyte was examined with transmission electron microscopy and atomic force microscopy. The introduction of hydrophilic solventmethanol to hydrophilic-tetrahydrofuran modified the internal structure of the block copolymer electrolyte, then generated a unique morphology. This work will be of help to understand the interactions between block copolymer electrolytes and solvents.
Keywords:Block copolymer electrolyte;Microphase separation;Morphology;Solvent;Proton exchange membrane
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