Optical and Morphological Studies on Novel Polyaniline-P2O5 Conductive Polymer Composites

Abstract

Recently conducting polymer composites have attracted considerable interest due to their numerous applications. Present work reports the preparation of polyaniline polymeric material with P₂O₅ to form polyaniline-P₂O₅ composites by chemical oxidation method. FTIR analysis established the various modes of vibration due to diverse functional groups present in the composite and the presence of a strong interaction between P₂O₅ and polyaniline. The UV-VIS spectra confirmed the p-p* and n-p* transitions of the benzenoid and quinonoid structure of the composites. The linear optical nature was understood from the optical transmission spectrum. The XRD patterns exhibited a weak crystalline nature for the composites. Thermal stability of polyaniline-P₂O₅ was determined using TGA. The SEM images show the effect of P₂O₅ doping and on polyaniline morphology. EDAX was performed to confirm the presence of P₂O₅ and polyaniline. Surface topography of polyaniline-P₂O₅ composites were studied using AFM.