Synthesis, Characterization and Fluorescence Applications of Conducting Poly O-Phenylenediamine and its ZnO Nanocomposites

Poly (o-Phenylenediamine) and its ZnO nanocomposites were synthesized at different concentrations metal oxide like 5%, 10% and 15% of ZnO by via chemical oxidative polymerization method using ammonium persulphate as an oxidant in the presence of HCl. The prepared polymer and its polymer nanocomposites are found to be soluble in common organic solvents like ethanol, DMSO, toluene etc. The formation of polymers and their nanocomposites were confirmed from the UV-Vis and FT-IR spectroscopy and the morphology was studied using SEM analysis. The formation of nanocomposites has been confirmed from the HRTEM studies. The thermal stabilities of the synthesized polymer and its nanocomposites are determined from TGA/DTA and DSC studies. From the thermal analysis, it was found that the polymer nanocomposites are more stable than the corresponding polymer. The study of electrical conductivity shows that synthesized polymer and its nanocomposites are semiconducting in nature and its fluorescence study shows that the polymer and its nanocomposites can act as green light emitters and this property can be used in various technological applications. J. Deepa 1 and Jaya Shanthi R 1* 1. Department of Chemistry, Auxilium College, Vellore,