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PVP Influence on PVA crystallinity and optical band gap | Abstract
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Abstract

PVP Influence on PVA crystallinity and optical band gap

Author(s): Sudha Kamath M K, Harish Kumar H G, Chandramani R, Radhakrishna M C

Thin films of PVA/PVP blend have been obtained by solution casting method. These films have been subjected to structural (XRD) and optical (FTIR, UV-VIS) studies. The crystallnity of PVA/PVP blends decreases with the increase in concentration of PVP. The FTIR spectra show the blending of PVA and PVP at different concentration. The UV-Vis spectroscopic analysis shows that optical band gap energy of PVA/PVP blends decreases with the increase in concentration of PVP.