Conductivity study of poly(N-vinylimidazole-co-butylmethacrylate) and its fluoroborate salt in solid state

Author(s): Samadrita Goswami*,Aradhana Dutta

In this paper, the chain flexibility of Poly(N-vinylimidazole) was tried to increase by lowering its glass transition temperature (Tg) and by increasing its amorphous region by copolymerizing with n-butyl methacrylate. The copolymerswere prepared in five different feedmolar ratios to optimize the required properties such as higher room temperature conductivity and better film forming capacity. The conductivity of copolymers, as well as their fluoroborate salts, have been reported here. The copolymers were prepared by free radical method and the salts were prepared by simple acidification. The copolymers and salts have been characterized by IR, 1H NMR, TGA, DSCanalysis. Frequency and temperature dependence of a.c. conductivity has been studied to learn about the electrical conduction behavior in the materials.

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