Structural and Electrical Properties of PVC-NH₄CF₃SO₃-EC Proton Conducting Electrolyte System

Abstract

Poly (vinyl) chloride (PVC)-based proton conducting polymer electrolytes have been prepared by solution cast technique. The effect of addition of ethylene carbonate (EC) as the plasticizer on the structural property of the prepared proton conducting polymer electrolyte system was investigated by X-Ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) while its effect on electrical property was investigated by Impedance Spectroscopy (IS). With addition of plasticizer, the crystalline nature of the polymer was found to be disrupted as revealed by X-Ray diffraction. FTIR showed interactions between Cl-and H+which was accounted by shifts in the bands of Cl-. Ionic conductivity was found to be 3.06 x 10-5S cm-1at room temperature (300 K)for the films containing 95 wt. % (PVC -NH4CF3SO3) –5 wt. % EC.

Studies of Poly(Ethyl Methacrylate) Complexed with Ammonium Trifluoromethanesulfonate

“…These H + ions are transported via each coordinating site by Grottus mechanism [4]. The conductivity and structural studies of various polymer-ammonium trifluoromethane sulfonate (NH 4 SO 3 CF 3 ) electrolytes have been reported in the literature [5,6,7,8] but only a few studies on PEMA-NH 4 SO 3 CF 3 electrolyte films have been done. In this paper, infrared spectroscopic result of PEMA-NH 4 S0 3 CF 3 was presented along with structural and conductivity data.…”