Comparison Of Composite Proton Conducting Polymer Gel Electrolytes Containing Weak Aromatic Acids

Vol. 2  Issue 2
Year: 2014
Issue:Jul-Sep
Title:Comparison Of Composite Proton Conducting Polymer Gel Electrolytes Containing Weak Aromatic Acids
Author Name:Rajiv Kumar
Synopsis:

Composite proton conducting non aqueous polymer gel electrolytes have been synthesized by dispersing nano sized fumed silica to the polymer gel electrolytes containing polymethylmethacrylate (PMMA), dimethylacetamide (DMA), benzoic acid (BA) and ortho-hydroxy benzoic acid (o-OHBA). These electrolytes have been characterized by complex impedance spectroscopy, viscosity and pH measurements. The effect of acid, polymer and fumed silica on -4 conductivity, pH and viscosity has been studied for gel electrolytes. Maximum conductivity of 2.95 x 10 S/cm and 5 o viscosity of 1.64 x 10 mPas at 25 C has been obtained. The conductivity of composite gels does not show any appreciable change with time and only a small change in conductivity is observed over the operational range of temperature, which is desirable for their use in device applications.