Synthesis, characterization by AC conduction and antibacterial properties of polyaniline fibers

摘要

The present paper aims at to study the preparation of Polyaniline fibers and characterize them. Polyaniline fibers were synthesized by chemical oxidation polymerization where ammonium per sulfate [(NH4)2S2O8] was used as oxidant to oxidize Aniline to Polyaniline. The Polyaniline fibers were characterized by XRD, FTIR, TEM and UV-Visible Spectroscopy. The characteristic peaks in FTIR and UV-Visible spectra confirmed the expected structure of polymer as reported in the literature. Further, Transmission electron microscopy (TEM) confirmed the formation of Polyaniline fibers. The A.C. conductivity , dielectric constant (€’(w) ) and DielectricLoss (€’’(w) ) of Polyaniline fiber were measured using impedance analyzer. The antibacterial activity was examined for this Polyaniline nano fibers and it was observed that PANI could be used as an antibacterial agent.