Science and Education Publishing American Journal of Materials Science and Engineering 2333-4673 2 4 2014 10 17 Synthesis of Chitosan-graft-Polyaniline-Based Composites 62 67 EN S.R. Khairkar Department of Chemistry, Govt. Institute of Science & Humanities Amravati, India A.R. Raut AJMSE2014243 10.12691/ajmse-2-4-3 2014 09 20 2014 09 30 2014 10 17 Chitosan was grafted with polyaniline through oxidative-radical copolymerization using ammonium persulfate in acidic medium. The grafting conditions were extensively studied by varying grafting parameters. All the findings have been discussed and proposed a plausible mechanism for the graft copolymerization. The representative chitosan-graft-polyaniline (Ch-g-PANI) was characterized using UV-VIS, FTIR, DSC, XRD and Scanning electron microscopy taking chitosan as reference. Ch-g-PANI exhibited electrical conductivity, which increases with the extent of grafting onto chitosan backbone. The application of conducting biomaterial such as Ch-g- PANI in the electronic devices especially for the fabrication of sensor devices would be attractive not only in terms of product cost and environmental safety but also from a materials science point of view.