Bulletin of Materials Science

, Volume 26, Issue 3, pp 329–334 | Cite as

Electrochemical synthesis and characterization of chloride doped polyaniline

  • A. M. Pharhad Hussain
  • A. Kumar


Chloride doped polyaniline conducting polymer films have been prepared in a protic acid medium (HCl) by potentiodynamic method in an electrochemical cell and studied by cyclic voltammetry and FTIR techniques. The FTIR spectra confirmed Cl- ion doping in the polymers. The polymerization rate was found to increase with increasing concentration of aniline monomer. But the films obtained at high monomer concentration were rough having a nonuniform flaky polyaniline distribution. Results showed that the polymerization rate did not increase beyond a critical HCl concentration. Cyclic voltammetry suggested that, the oxidation-reduction current increased with an increase in scan rate and that the undoped polyaniline films were not hygroscopic whereas chloride doped polyaniline films were found to be highly hygroscopic.


Conducting polymer electrochemical synthesis polyaniline cyclic voltammetry FTIR 


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Copyright information

© Indian Academy of Sciences 2003

Authors and Affiliations

  • A. M. Pharhad Hussain
    • 1
  • A. Kumar
    • 1
  1. 1.Department of PhysicsTezpur UniversityNapaam, TezpurIndia

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