POLYMER SOLID ELECTROLYTES FROM POLY(OXYETHYLENE)DERIVATIVES
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概要
- 論文の詳細を見る
Our molecular design of the polymer solid electrolyte based on rubbery state of polymer is presented. Biocompatible segmented polyurethane elastomers with poly(oxyethylene)-poly(oxytetra-methylene)-poly(oxyethylene)segments were used at first for the matrix of solid electrolyte. Next, oligolmeric poly(oxyethylene)(PEO)chains were grafted to polysiloxane main chain to afford rubbery matrix for ion conduction when doped with lithium perchlorate. The latter showed higher conductivities than the former. However, the mechanical properties of the latter were poor, and its crosslinking resulted in the lower conductivity. Copolymer polymerized from ethylene oxide and epichlorohydrin was evaluated as a solid electrolyte. The epichlorohydrin unite did not contribute to the ion conduction resulting in relatively low conductivities, though it was good in term of mechanical properties. Our final molecular design of the ion conductive matrix was the high molecular weight comb-shaped PEO with oxyethylene segments as side chains. Both main and side chains are oxyethylene usits and the molecular weight was in the order of 10^6. The side oxyethylene units discouraged crystallization of PEO. Excellent conductivities were observed on doping with lithium salts.
- 社団法人日本材料学会の論文
- 1998-06-15
著者
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KOHJIYA Shinzo
Institute for Chemical Research, Kyoto University
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Kohjiya S
Institute For Chemical Research Kyoto University
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Kohjiya Shinzo
Institute For Chemical Research Kyoto University
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IKEDA Yuko
Faculty of Engineering and Design, Kyoto Institute of Technology
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Ikeda Yuko
Faculty Of Engineering And Design Kyoto Institute Of Technology
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IKEDA Yuko
Faculty of Education, Kagoshima University
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