Preparation and characterization of acrylonitrile-ethyl methacrylate copolymers and the effect of LiClO4 salt on electrical properties of copolymer films

VARGÜN E., SANKIR M., Usanmaz A., Kanbur Y., ABACI U., GÜNEY H. Y.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.124, no.1, pp.840-846, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 124 Issue: 1
  • Publication Date: 2012
  • Doi Number: 10.1002/app.35112
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.840-846
  • Keywords: acrylonitrile, ethyl methacrylate, emulsion polymerization, dielectric constant, ac-conductivity, GLASS-TRANSITION TEMPERATURE, SEQUENCE DISTRIBUTION, BEHAVIOR, ELECTROLYTE, PERFORMANCE, MEMBRANES
  • Middle East Technical University Affiliated: Yes


Copolymers of poly(acrylonitrile-co-ethyl methacrylate), P(AN-EMA), with three different EMA content and parent homopolymers were synthesized by emulsion polymerization. The chemical composition of copolymers were identified by FTIR, H-1-NMR and C-13-NMR spectroscopy. The thermal properties of copolymers were modified by changing the EMA content in copolymer compositions. Various amounts of LiClO4 salt loaded (PAN-co-PEMA) copolymer films were prepared by solution casting. The dielectric properties of these films at different temperatures and frequencies were investigated. It was found that the dielectric constant and ac-conductivity of copolymer films were strongly influenced by the salt amounts and EMA content in copolymers. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012