In this research, nanocomposite membranes were prepared using polyethylene oxide as polymer host, lithium bis(trifluoromethanesulfonyl imide) as salt and nanochitosan as inert filler. Initially nanochitosan was prepared from chitosan by ionotropic gelation method. Nanocomposite membranes were prepared by solvent free membrane hot press technique. The prepared membranes possessed excellent physico-chemical properties. The complexing behavior and structural reorganization in polymer electrolytes were analyzed by XRD and FT-IR analyzes. The decrease in crystalline nature of polymer electrolytes was confirmed by DSC analysis. The electrolyte S3 possessed high conductivity and attained a maximum of 10-3.01S/cm.
nanochitosan, nanocomposite electrolytes, ac ionic conductivity, dielectric analysis
XSS and SB acknowledge the financial support received from the Department of Science and Technology (DST), Govt. of India, for carrying out this project (Sanction No. SR/S1/PC54/2009 dated 17.6.2010). Author KKS thanks P.Ganeshan, Research Scholar, DGIST, South Korea for his valuable suggestions for carrying out this work.
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