Abstract
AbstractBased on sol–gel methodology, poly(acrylonitrile‐methyl methacrylate) [P(AN‐MMA)[/SiO2 hybrid solid electrolytes were prepared from AN, MMA, and tetraethyl orthosilicate with 3‐methacryloxypropyl‐trimethoxysilane (KH570) as silane coupling agent. From Fourier transformed infrared spectroscopy and x‐ray photoelectron spectroscopy spectra, P(AN‐MMA) and silica units are linked by covalent bonds in P(AN‐MMA)/SiO2 hybrid network. Differential scanning calorimetry result shows the glass transition temperature (Tg) of P(AN‐MMA)/SiO2 hybrid material is higher than that of P(AN‐MMA) and increases with the increase of silica content. From X‐ray diffraction analysis, this hybrid solid electrolyte is amorphous. A study of ionic conductivity by AC impedance suggests that the ionic conductivity of P(AN‐MMA)/SiO2 hybrid solid electrolyte increases with the increase of the silica content and reaches a maximum value of 1.42 × 10−3 S cm−1 for 7 wt % SiO2, and then decreases for SiO2 > 7 wt %. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
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