Conductivity and Structural Studies of PEMA/ENR-50 Blend with LiCF₃SO₃ Salt

Abstract

Solid polymer electrolytes (SPEs) comprising of a blend of Poly (ethyl methacrylate) (PEMA) and Epoxidized natural rubber-50 (ENR50) as polymer host and lithium triflate (LiCF3SO3) as dopant were prepared by solution cast technique. The blend based polymer electrolytes have a fixed PEMA/ENR50 ratio of 70:30 by wt. % as at this ratio ENR-50 imparted stable mechanical properties to the otherwise fragile PEMA. The incorporation of LiCF3SO3into the blend is found to increase the conductivity of PEMA/ENR50. The highest conductivity achieved was 3.64 x 10-5Scm-1at 40wt. % LiCF3SO3. The structure of the samples was investigated by X-ray diffraction and the results show that the highest conducting sample is the most amorphous.

Temperature glass and conductivity behavior of epoxy deproteinized natural rubber in ternary blend of EDPNR/PMMA/LiCF3SO3

“…by adding plasticizer, organic or ceramic filler, and blending with other polymers. 2,3,6,7 The most popular technique to enhance the performance of PMMA is through blending PMMA with the elastomeric materials, e.g. epoxidized natural rubber (50% of epoxidized yield) (ENR 50).…”