Study of Optical Properties of PVC/Ag2O Nano-Composites by Dispersing Spherical Nanofillers into Polymer Matrix under Normal and Heat Treated Conditions

Abstract

In the present work a novel polymer/metal oxide composites containing PolyvinylChloride (PVC) and Ag2O nanoparticles (NP) were fabricated under room and elevatedtemperatures. The PVC/Ag2O NC has been fabricated to enhance the electronicapplication such as memory devices, sensors, electronic luminescent devices andmedical applications. The Ag2O NP was synthesized by dropwise mixing processhaving 25 nm in size with spherical surface morphology. The Fourier transforminfrared spectroscopy (FTIR) was taken for (1) virgin PVC film (2) PVC/Ag2O NC andPVC/Ag2O (heat treated) Composites. The formation of absorbance peaks, theirshifting, intensity and maximum absorbance values were considered in all the three C-C, C-Cl and C-H classified stretching modes of vibrations for different composites. Itwas found in C-C stretch range the virgin PVC back bone chain occurs at 1101 cm-1which shifted to 1076 cm-1 for PVC/Ag2O NC, further shift is evident for PVC/Ag2O(heat treated) Composites at 1151 cm-1. In addition rocking vibration and wagging ofmethylene group changes in the same fashion. The change in spectral feature takesplaces due to filling of Ag2O NP in PVC matrix, indicates that changes in dipolemoments occur as a result of molecular vibrations. It is also observed the absorbancepeaks value is high for virgin PVC film for all modes of stretching vibration, whichdecreases for Ag2O/PVC (NC) further decrease is evident for Ag2O/PVC (NC) heattreated composite