The focus on the Polymer electrolyte films prepared from poly (methyl methacrylate) and LiBF4 with different concentrations of plasticizer (DBP) are described. The formation of polymer–salt complex has been confirmed by FTIR spectral studies. The temperature dependence of conductivity of polymer films seems to obey the VTF relation. Values of conductivities of the polymer complexes are presented and discussed (S. Rajendran and T. Uma, 2000). It will be used in coming future, in different field.
Key words: PMMA-LiBF4-DBP, Polymer electrolyte, FTIR, impedance studies.
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