Effect of PVAc dispersal into PVA-NH4SCN polymer electrolyte |
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Authors: | P K Shukla S L Agrawal |
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Institution: | (1) Department of Physics, A.P.S. University, 486 003 Rewa, M.P., India |
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Abstract: | The present paper deals with ion transport studies on a new proton conducting composite polymer electrolyte — (PVAx:NH4SCN)y:PVAc system. Complexation and morphology of the composite electrolyte films are discussed on the basis of X-ray diffraction
and differential scanning calorimetry data. Coulometry and transient ionic current measurements revealed charge transport
through protons. The maximum ion conductivity was found to be 7.4·10−4 S·cm−1 for the composition: x=0.15, y=0.12. The observed conductivity behaviour is correlated to the morphology of the films. The
temperature dependence of the electrical conductivity exhibits Arrhenius characteristics in two different temperature ranges
separated by a plateau region related to morphological changes occurring in the electrolyte. |
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Keywords: | |
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