Journal
MATERIALS LETTERS
Volume 60, Issue 28, Pages 3431-3436Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2006.03.028
Keywords
PVC/PVdF blend; ionic conductivity; thermal properties; phase separation; crystallinity
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The hybrid plasticized polymer electrolyte composed of the blend of polyvinyl chloride (PVC) and poly vinylidene fluoride (PVdF) as a host polymer, the mixture of ethylene carbonate (EC) and propylene carbonate (PC) as a plasticizer and LiBF4 as a salt was studied. An attempt was made to investigate the effect of PVdF in the plasticized PVC+LiBF4 system in three blend ratios. The FTIR and DSC studies confirm the formation of polymer-salt complex and miscibility of the PVC and PVdF. The XRD results of plasticized PVC (S1, S2, S3) and PVdF blended (S4, S5, S6) were compared that increase in PVC concentration increases the degree of crystallinity (S 1 < S2 < S3) and the blending of PVdF further increases the crystallinity (S4 < S5 < S5), which were confirmed in ionic conductivity measurements. The surface morphology of the films was also studied by Scanning Electron Microscope, which parallels the same. (c) 2006 Elsevier B.V. All rights reserved.
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