Table of Contents
Journal of Composites
Volume 2014, Article ID 838975, 9 pages
http://dx.doi.org/10.1155/2014/838975
Research Article

Synthesis, Characterization, and Photoconductivity Studies on Poly(2-chloroaniline) and Poly(2-chloroaniline)/CuO Nanocomposites

1Department of Chemistry, Auxilium College, Vellore, Tamil Nadu 632006, India
2Department of Electrical Engineering, University of Washington, Seattle, WA 98195, USA

Received 19 June 2014; Revised 20 August 2014; Accepted 10 September 2014; Published 14 October 2014

Academic Editor: Suying Wei

Copyright © 2014 Porselvi Linganathan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The poly(2-chloroaniline) and poly(2-chloroaniline)/CuO nanocomposites with various weight percentages (5%, 10%, 15%, 20%, and 25%) were synthesized by in situ chemical oxidative polymerization method using ammonium per sulphate (oxidant), HCl (dopant), and dodecyl benzene sulphonic acid as a surfactant at 0°C. The formation of polymer and its composites was confirmed by FTIR and UV-Visible spectroscopy. The SEM and X-ray diffraction studies clearly indicate the uniform dispersion of CuO nanoparticles into the polymer matrix. The thermal stability of the polymer and its composites increased with increase in the percentage of CuO nanoparticles. The polymer and composites exhibit fluorescence property and hence can be used in the light emitting diodes. The current voltage (I-V) curves clearly illustrate the enhanced conductivity on light exposure compared to the dark current. The conductivity of the polymer increased with increase in the percentage of CuO nanoparticles. Poly(2-chloroaniline)/CuO nanocomposites with 25% of CuO show a maximum conductivity of  S cm−1. The composites synthesized behave as organic metals due to their semiconducting nature.