SYNTHESIS, CHARACTERIZATION AND DC CONDUCTIVITY STUDY OF POLYANILINE -V2O5 COMPOSITES

Vijaykumar.B.Chanshetty, Sharanappa.G, B.M.Patil

Abstract: Polyaniline - V2O5 composites at different weight percentages were synthesized by in situ polymerization method. In situ polymerization of aniline was carried out in the presence of vanadium pentaoxide to synthesize Polyaniline / vanadium pentaoxide composites (PANI/ V2O5 ) by chemical oxidation method. The composites have been synthesized with various compositions (5, 10, 15, 20, and 25 wt %) of vanadium pentaoxide in PANI. From the Fourier transform infrared spectroscopy (FTIR) studies on polyaniline/ V2O5 composites, the peak at 1122 cm -1 is considered to be measure of the degree of electron delocalization, 1487 cm -1 is C=C stretching of benzonoid ring, 1558 is C=N quinonoid stretching mode of vibration. The surface morphology of these composites was studied with scanning electron micrograph (SEM). The dc conductivity has been studied in the temperature range of 200C to 1800C and it is found that 25 wt% shows high conductivity compare to pure polyaniline and other composites. The results obtained for these composites are of scientific and technological interest.

Keywords: Polyaniline; Vanadium pentaoxide; Composites; DC conductivity, Tangent loss.

DOI: https://doi.org/10.15623/ijret.2016.0533014