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Preparation and characterization of acrylonitrile‐ethyl methacrylate copolymers and the effect of LiClO 4 salt on electrical properties of copolymer films
Author(s) -
Vargün Elif,
Sankır Mehmet,
Usanmaz Ali,
Kanbur Yasin,
Abacı Ufuk,
Güney H. Yüksel
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35112
Subject(s) - copolymer , acrylonitrile , materials science , polymer chemistry , methacrylate , emulsion polymerization , fourier transform infrared spectroscopy , polymerization , dielectric , chemical engineering , polymer , composite material , optoelectronics , engineering
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, 1 H‐NMR and 13 C‐NMR spectroscopy. The thermal properties of copolymers were modified by changing the EMA content in copolymer compositions. Various amounts of LiClO 4 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. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012