Abstract: The oxidative chemical polymerization of poly ortho, meta and Para Aminothiophenols were carried out in an aqueous hydrochloric acid using ammonium persulphate as an oxidant. The synthesized polymers were characterized using FT-IR, UV-VIS, XRD and SEM. The basic framework of benzenoid and quinoid stretching in synthesized polymers were confirmed by FTIR. The UV-VIS spectra of isomers of poly aminothiophenol showed two distinct absorption peaks for π-π* and n-π* transitions due to the benzenoid and quinoid rings. The thermal properties were carried out using TGA, DTA and DSC studies and found that the synthesized polymers were thermally stable even up to 750°C. The SEM analysis clearly showed the morphology of the polymers and the morphology varied from polymer to polymer. The DC conductivity was carried out by electrochemical method and it showed that the polymers were semiconducting in nature with the order of 10-4. The antibacterial study carried out by well cut diffusion method indicated that the antibacterial activities varied depending on the type of bacterial strains and were compared with the standard Ciprofloxacin. The antibacterial activities were found to increase with increase in concentrations of polymers.
Keywords: Conducting Polymers, Chemical Oxidation, Aminothiophenol, Thermal Study, Conductivity, Antibacterial Study
| DOI: 10.17148/IARJSET.2018.5813