Effect of LiClO4 Salt on Dielectric Properties of Acrylonitrile-Methyl Methacrylate and Acrylonitrile-Isobutyl Methacrylate Copolymers


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

JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY, vol.51, no.2, pp.156-164, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 51 Issue: 2
  • Publication Date: 2014
  • Doi Number: 10.1080/10601325.2014.864928
  • Title of Journal : JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
  • Page Numbers: pp.156-164
  • Keywords: emulsion polymerization, ac-conductivity, dielectric properties, acrylonitrile, POLYACRYLONITRILE ULTRAFILTRATION MEMBRANE, TEMPERATURE BULK COPOLYMERIZATION, GLASS-TRANSITION TEMPERATURE, GRAPHITE ANODE, POLYMER, ELECTROLYTES, MICROEMULSION, BEHAVIOR, PLASMA, BINDER

Abstract

Poly(acrylonitrile-co-isobutyl methacrylate), PAN-co-PIBMA, and poly(acrylonitrile-co-methyl methacrylate), PAN-co-MMA copolymers are synthesized by emulsion polymerization. The structural characterization is done by FTIR and H-1-NMR spectroscopy and thermal analyses are performed by thermogravimetric analysis (TGA). After various amounts of LiClO4 salt loading into copolymer films, the dielectric properties of these films at different temperatures and frequencies are determined. The effects of different methacrylate groups and salt content on the dielectric properties of copolymers are investigated. It is found that the dielectric constant increases systematically with increasing MMA and IBMA content in the copolymer. The samples with higher salt content show higher ac-conductivities.