Shetty, Supriya K and Ismayil, . and Nasreen, . and Swathi, . and Mahesha, M G and Keshav, Rashmitha (2021) Sodium ion conducting PVA/NaCMC bio polyblend electrolyte films for energy storage device applications. International Journal of Polymer Analysis and Characterization, 26 (5). pp. 411-424. ISSN 1023-666X

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Abstract

Impact of Sodium Bromide salt on the microstructural properties of Poly (Vinyl Alcohol) and Sodium salt Carboxymethyl cellulose (PVA/NaCMC:70/ 30) blend biopolymer electrolyte films were investigated. The films were prepared by conventional solution casting method and were subjected to UV-Visible, XRD, SEM, AC, & DC conductivity studies. Microstructural properties of PVA/NaCMC blend system got affected due to complex-formation. Amorphosity of the poly blend-system increased upon doping indicating rearrangement of polymer chain due to the interaction of Naþwith the functional group of PVA/NaCMC blend system. It is found that the degree of crystallinity of the PVA/NaCMC blend films decreased upon doping, due to molecular chain disorderness that facilitates the migration of ions due to enhancement in the free volume as observed from SEM.

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