Plasticised polymer electrolytes based on PMMA grafted natural rubber–LiCF3SO3–PEG200

摘要: Polymer electrolyte membranes that consist of 70 wt-% natural rubber grafted with 30 poly(methyl methacrylate) (MG30) and lithium trifluoromethane sulphonate (LiTf) salt have been investigated various concentrations poly(ethylene glycol) 200 (PEG200). The formation polymer–salt complexes has confirmed by Fourier transform infrared spectral studies. X-ray diffraction studies further all the samples prepared are amorphous. highest conducting sample composition 63 wt-%MG30–27 wt-%LiTf–10 wt-%PEG conductivity 3·65×10−4 S cm−1 at 298 K. From differential scanning calorimetry studies, glass transition temperature Tg is found to increase from −63 −54°C in PEG concentration wt-%PEG200. ionic transference number mobile ions estimated using Wagner’s polarisation method, results reveal species mainly ions.