IJM026 Structural and Morphological Characteristics of PPY-PANI Composite Thin Films by Solution Mixing Method

Abstract

In this work, the structural and morphological characteristics of pure polypyrrole (PPY), polyaniline (PANI), and their blends in varying ratios were studied. The X-ray diffraction (XRD) analysis revealed distinct diffraction peaks corresponding to the characteristic structures of PPY, PANI, and their blends (PPy-PANI), indicating successful composite formation and phase interactions. Field-emission scanning electron microscopy (FE-SEM) results showed porous, interconnected morphologies in composites, which enhance surface area and gas adsorption sites compared to pure polymers. Such enhancement is very useful for gas sensing applications of PPY/PANI thin film composites at elevated temperatures.