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 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 124 Issue: 1
  • Publication Date: 2012
  • Doi Number: 10.1002/app.35112
  • Title of Journal : JOURNAL OF APPLIED POLYMER SCIENCE
  • Page Numbers: pp.840-846
  • Keywords: acrylonitrile, ethyl methacrylate, emulsion polymerization, dielectric constant, ac-conductivity, GLASS-TRANSITION TEMPERATURE, SEQUENCE DISTRIBUTION, BEHAVIOR, ELECTROLYTE, PERFORMANCE, MEMBRANES

Abstract

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