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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
Author(s) -
Ye Lin,
Ju Ling,
Wu Chuan,
Feng Ting,
Mo Wei,
Wu Feng,
Bai Ying,
Feng Zengguo
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30650
Subject(s) - materials science , membrane , thermogravimetric analysis , polymer chemistry , differential scanning calorimetry , polymer , dielectric spectroscopy , fourier transform infrared spectroscopy , thermal stability , chemical engineering , electrolyte , ionic conductivity , gel permeation chromatography , electrochemistry , composite material , chemistry , electrode , biochemistry , physics , engineering , thermodynamics
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, 1 H‐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