Nanotech 2010

Method of enhancing polyaniline conductivity using different oxidizing agents as dopant

M.A. Iqbal, S. Manzoor

Keywords: polyaniline, ammonium per oxy disulphate (APS), Hydrogen per oxide, Potassium dichromate


The synthesis and characterization of Polyaniline pellets has been analyzed by using three different oxidizing agents like Ammonium per oxy disulphate (APS), Hydrogen per oxide and Potassium dichromate. Samples of different molar ratios of Aniline Hydrochloride to oxidative agents have been made. Significant change in the conductivity due to variation in the molar ratio is noticed, that the conductivity of Polyaniline pellets first increases up to the molar ratio of 4:1 and then start decreasing. The highest value of conductivity among the above mentioned three oxidizing agents is observed for APS i.e. 4.7 S/cm. Further, for different dopants Polyaniline emeraldine base films of different thickness have been casted by dissolving it in Dimethylsulfoxide (DMSO). For all the dopant samples, pellets as well as the films, variation in conductivity, XRD and FTIR spectral variation has been studied.
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