Controlled Polymerization of Silver Nanoparticle Dispersed poly (aniline and 3–Bromo Aniline) Composites: “One–Pot” Synthesis, Characterization, Morphology, and Electrochemical Properties of Novel Copolymer Nanocomposites

Abstract

Abstract The formation of materials between silver nanoparticles (AgNPs) and a polyaniline matrix can lead to various composites, depending on the specific conditions imposed by the researchers basedon the targets and applications initially intended. These nanocomposites often exhibit enhanced electrical, optical, and catalytic properties compared to either component considered by itself. Therefore, such new materials are sought–after and targeted for synthesis. New copolymer composites of silverdispersed poly(aniline–co–3–bromoaniline) copolymer nanocomposites at different molar ratios were synthesized by insitu chemical oxidative polymerization methods. Characterization includes UV–vis spectroscopy, FT–IR spectroscopy, X–ray diffraction, and scanning electron microscopy.The optical absorption absorption peaks at 338 and 596 nm are ascribed to the n–π* electronic transitions, respectively. The formation of benzenoid and quinoid rings of the copolymer system was confirmed by FT–IR spectroscopy. XRD spectral data confirms the amorphous nature of the copolymer. The SEM image depicts the agglomerated and spherical granular morphology with average sizes of 150 to 300 nm. According to a study on electrical conductivity, conductivity decreases as the feed ratio of 3–bromoaniline monomer increases1.13×10–5 to 5.16×10–8 S cm–1.