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Effect of ammonium persulfate (aps) concentration on chitosan grafted polyaniline

S. RAMANATHAN1,* , V.PONNUSWAMY1, B.GOWTHAM1, K.PREMNAZEER2, S.C. MURUGAVEL3

Affiliation

  1. Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore-641020, India.
  2. Department of Physics, Islamiah College of Arts and Science, Vaniyambadi-635752, India.
  3. Department of Chemistry, PSG College of Technology, Coimbatore – 641014, India

Abstract

Chitosan was grafted with polyaniline (PANI) through oxidative radial copolymerization using ammonium persulfate (APS) initiator to obtain a product called Chitosan-graft-polyaniline (Chit-g-PANI). Chit-g-PANI samples were synthesized by varying the APS concentration. The grafted polymer was characterized by using Fourier Transformation Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Dielectric Studies and AC Conductivity taking Chitosan as a reference material. The application of conducting biomaterial such as Chit-g-PANI in the electronic devices is especially for the fabrication of sensor devices. FTIR spectra of the Chit-g-PANI revealed that there is a strong interaction between PANI and Chitosan. Morphological studies were carried out to confirm the grafting polymerization and it was further confirmed by XRD pattern. Chit-g-PANI exhibited electrical conductivity, which increase with increase in the APS concentration..

Keywords

Conducting polymers, Chitosan, Polyaniline, Grafting.

Submitted at: July 24, 2012
Accepted at: Oct. 30, 2012

Citation

S. RAMANATHAN, V.PONNUSWAMY, B.GOWTHAM, K.PREMNAZEER, S.C. MURUGAVEL, Effect of ammonium persulfate (aps) concentration on chitosan grafted polyaniline, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 11-12, pp. 1011-1015 (2012)