Conductivity and optical studies of plasticized polymer electrolytes based on 49% PMMA-grafted natural rubber

Abstract

Gel polymer electrolytes (GPEs) composed of MG49, lithium triflate (LiTF) salt and ethylene carbonate (EC) as a plasticizer is described. The formation of polymer-salt complexes was confirmed by FTIR structural studies. The effect of plasticizer on the ionic conductivity is explained in term of morphology of the film. The plasticizer found to increase the conductivity and reduce the crystalline nature of the polymer host. The improvement of the amorphousness in the plasticized polymer-salt complexes has been confirmed by XRD spectra analysis. The UV-Vis optical studies observed the energy band gap was reduced and associated with the amorphous domain of the samples.

X-Ray Diffraction and Infrared Studies on Plasticized Cellulose Acetate Complexed with Ammonium Iodide for Solid Polymer Electrolyte

“…In general the plasticizer with high dielectric constant will play a significant role as an ionic conductivity enhancer by inducing ion dissociation and facilitate the ion transport throughout their viscous medium. The plasticizers frequently used is carbonate based such as propylene carbonate (PC), ethylene carbonate (EC) and dimethyl carbonate (DMC) [5].…”