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Jpn. J. Appl. Phys. 42 (2003) pp. 680-681  |Next Article|  |Table of Contents|
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A Novel Proton Conductor Based on Ternary Polymer Blend

Minoru Umeda, Shin-ya Kishioka, Akifumi Yamada and Isamu Uchida¹

Department of Chemistry, Faculty of Engineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
¹Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, Aramaki-Aoba 07, Aoba-ku, Sendai 980-8579, Japan

(Received July 22, 2002; accepted for publication October 2, 2002)

A novel proton conductor based on a ternary polymer blend has been studied and compared with that based on binary systems. Binary and ternary polymer films were prepared using recast solutions containing poly(acrylic acid), poly(vinyl butyral) and vinylidene-fluoride-based copolymer. The relationship between polymer composition and ac conductivity has been investigated. As a result, it has been proven that the ternary system containing 50 wt% poly(acrylic acid), 20 wt% poly(vinyl butyral) and 30 wt% vinylidene-fluoride-based copolymer exhibits a higher conductivity than Nafion. The ternary polymer film has shown considerable stability under H₂O saturated N₂ gas at 98°C.

URL: http://jjap.jsap.jp/link?JJAP/42/680/
DOI: 10.1143/JJAP.42.680

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