Effect of LiClO4 Salt on Dielectric Properties of Acrylonitrile-Methyl Methacrylate and Acrylonitrile-Isobutyl Methacrylate Copolymers |
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| Authors: | Elif Vargun Ufuk Abaci Mehmet Sankir Ali Usanmaz H Yuksel Guney |
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| Institution: | 1. Department of Chemistry , Mugla Sitki Kocman University , 48000 , K?tekli Mugla , Turkey;2. Department of Physics , Kocaeli University , 41380 , Umuttepe Izmit , Turkey;3. Nanotechnology and Membrane Science Research Laboratory , TOBB University of Economics and Technology , Sogutozu Cad. No:43, 06560 , Ankara , Turkey;4. Polymer Science and Technology, Department of Chemistry , Middle East Technical University , 06531 , Ankara , Turkey |
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| 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 1H-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. |
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| Keywords: | acrylonitrile ac-conductivity dielectric properties emulsion polymerization |
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