Synthesis of Polymer Electrolyte Based on P(VAc-MA)/PMMA and Its Application in Electrochromic Devices

Chem. J. Chinese Universities

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Synthesis of Polymer Electrolyte Based on P(VAc-MA)/PMMA and Its Application in Electrochromic Devices

YANG Dao-Jun^1,2, FU Xiang-Kai^1,2,3*, JIANG Qing-Long^1,2, GONG Yong-Feng^1,2

1. Research Institute of Applied Chemistry, College of Chemistry and Chemical Engineering,
2. Key Laboratory of Applied Chemistry of Chongqing Municipality,
3. Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Southwest China University, Chongqing 400715, China

Received:2007-04-09 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
Contact: FU Xiang-Kai

Abstract

Abstract: A random copolymer P(VAc-MA) was synthesized via seeded emulsion copolymerization with vinyl acetate(VAc) and methyl acrylate(MA) as the monomers, and the polymer electrolytes comprising blend of the corresponding copolymer P(VAc-MA) and PMMA as a host polymer and LiClO₄ as a dopant were prepared with solution casting technique. The performances of the synthesized copolymer and prepared polymer membrane and electrolyte were studied with FTIR, XRD, TG, UV, mechanical testing and AC impedance. It was found that copolymer P(VAc-MA) was formed with breaking the double bonds of monomers. After blending P(VAc-MA) and PMMA, the energy barrier of the segmental motion in the polymer electrolyte was reduced because of the amorphous nature increased; the thermal stability and mechanical performance increased. The polymer electrolytes based on blends P(VAc-MA)/PMMA possess an excellent transparence and the maximum ionic conductivity value was found to reach 1.17×10^-3 S/cm at 25 ℃; the ionic conductivity increases as temperature rising, the conductivity temperature plots are found to follow basically the Arrhenius equation. The polymer electrolytes were further evaluated in electrochromic devices(ECD) fabricated by transparent PET-ITO and electrochromic active viologen derivative films, and its excellent performance promised the usage of the polymer electrolytes as the ionic conductor material in ECD.

Key words: P(VAc-MA), PMMA, Polymer electrolyte, Ionic conductivity, Electrochromic device

CLC Number:

O631.2+3

TrendMD:

YANG Dao-Jun^1,2, FU Xiang-Kai^1,2,3*, JIANG Qing-Long^1,2, GONG Yong-Feng^1,2. Synthesis of Polymer Electrolyte Based on P(VAc-MA)/PMMA and Its Application in Electrochromic Devices[J]. Chem. J. Chinese Universities, doi: .

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Synthesis of Polymer Electrolyte Based on P(VAc-MA)/PMMA and Its Application in Electrochromic Devices

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