Characterization of plasticized grafted natural rubber-30% poly (methyl methacrylate) (MG30) based polymer electrolytes

This study explained on the effect of plasticizer ethylene carbonate (EC) on the properties of 30% poly (methyl methacrylate) grafted natural rubber grafted (MG30) doped with ammonium triflate (NH₄CF₃SO₃) are investigated. The influence of salt concentration and with different proportion of plasticizer on the conductivity has been presented. The ac impedance study showed the conductivity reaches up to 10^-4 Scm^-1 at room temperature for the EC plasticized sample. The conductivity temperature-dependent studies depicted the plasticized and unplasticized MG30-ammonium salt complexes deviated from Arrhenius behavior. The X-Ray diffraction (XRD) spectra analysis demonstrated the incorporation of plasticizer was improved the amorphousness of MG30-NH₄CF₃SO₃ electrolyte films. The energy band gap (E_g) was found to decrease with the increasing of plasticizer content.