Blending poly(methyl methacrylate) and poly(styrene-co-acrylonitrile) as composite polymer electrolyte

Mohanlal Digar, Shiue Liang Hung, Ten Chin Wen

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

A blend of poly(methyl methacrylate) (PMMA) and poly(styrene-co-acrylonitrile) (PSAN) has been evaluated as a composite polymer electrolyte by means of differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, ac impedance measurements, and linear sweep voltammetry (LSV). The blends show an interaction with the Li+ ions when complexed with lithium perchlorate (LiClO4), which results in an increase in the glass-transition temperature (Tg) of the blends. The purpose of using PSAN as another component of the blend is to improve the poor mechanical properties of PMMA-based plasticized electrolytes. The mechanical property is further improved by introducing fumed silica as inert filler, and hence the liquid electrolyte uptake and ionic conductivity of the composite systems are increased. Room-temperature conductivity of the order of 10-4 S/cm has been achieved for one of the composite electrolytes made from a 1/1 blend of PSAN and PMMA containing 120% liquid electrolyte [1M LiClO4/propylene carbonate (PC)] and 10% fumed silica. These systems also showed good compatibility with Li electrodes and sufficient electrochemical stability for safe operation in Li batteries.

原文English
頁(從 - 到)1319-1328
頁數10
期刊Journal of Applied Polymer Science
80
發行號8
DOIs
出版狀態Published - 2001 5月 23

All Science Journal Classification (ASJC) codes

  • 一般化學
  • 表面、塗料和薄膜
  • 聚合物和塑料
  • 材料化學

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