Synthesis and characteristics of a silicon-containing polymer, manufacture of an electrolyte membrane from the polymer and poly(vinylidene fluoride-co-hexafluoropropene), and property testing of the membrane

Authors

  • Lin Ye,

    1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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  • Ling Ju,

    1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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  • Chuan Wu,

    1. School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China
    2. Laboratory of the National Development Center of Hi-Tech Green Materials, Beijing 100081, China
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  • Ting Feng,

    1. School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China
    2. Laboratory of the National Development Center of Hi-Tech Green Materials, Beijing 100081, China
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  • Wei Mo,

    1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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  • Feng Wu,

    1. School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China
    2. Laboratory of the National Development Center of Hi-Tech Green Materials, Beijing 100081, China
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  • Ying Bai,

    1. School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China
    2. Laboratory of the National Development Center of Hi-Tech Green Materials, Beijing 100081, China
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  • Zeng-guo Feng

    Corresponding author
    1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
    • School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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Abstract

A silicone-containing polymer was synthesized by addition polymerization between 1,12-bis(3-methyl-3-oxetanyl)-2,5,8,11-tetraoxadodecane and dichloride dimethylsilane catalyzed by tetrabutylammonium bromide and was characterized by Fourier transform infrared spectroscopy, 1H-NMR, gel permeation chromatography, and differential scanning calorimetry analyses. To manufacture a tough solid electrolyte membrane, various amounts of a poly(vinylidene fluoride-co-hexafluoropropene) copolymer was used to reinforce this silicone-containing polymer. The mechanical properties and compatibility of the resulting membranes were assessed by mechanical testing and scanning electron microscopy observation. The ionic conductivity was assayed from an alternating-current impedance spectrum. The results reveal that the maximum ionic conductivity reached 7.4 × 10−5 S/cm at 30°C and 2.6 × 10−4 S/cm at 80°C, respectively. Additionally, the linear sweep voltammetry tests showed that this kind of the blended polymer electrolyte was electrochemical stable until 4.3 V. The thermogravimetric analysis measurements also implied its good thermal stability. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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