OICC Press International Nano Letters 2228-5326 4 1 (March 2014) 2014 03 12 Synthesis and characterization of new biocompatible copolymer: chitosan-graft-polyaniline 10.1007/s40089-014-0099-2 EN Sajjad Sedaghat Department of Science, Islamic Azad University, Malard Branch, Malard, IR Journal Article 2014 03 12 Abstract Polyaniline as a conductive polymer and chitosan as a natural polymer have been reacted with formaldehyde as grafting agent and potassium persulfate as an initiator. The effect of using specific primer, different ratio of monomers and the solubility of synthesized copolymer has been studied and analyzed. Characterization of this new copolymer were occurred by Fourier transform infrared spectroscopy, UV–visible, scanning electron microscopy and differential scanning calorimetry technique.