Volume : 4, Issue : 11, November - 2015

Temperature response of conducting Polypyrrole (Ppy) prepared with Ammonium per Sulfate (APS) doped with Dodecylbenzene sulfonic acid (DBSA)

C. D. Marathe

Abstract :

<p>The procedures for the synthesis of Polypyrrole (PPy) doped with oxidizing agents such as Ammonium per Sulfate (APS) by means of chemical oxidative polymerization were presented. The bonding structure, morphologies, chemical nature of conducting polymers were studded by various ,methods like Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) ,X-ray diffraction (XRD) techniques. The temperature dependence of the electrical conductivity was studied at temperatures range from 300C up to 700C. Attempt was made to increase the electrical conductivity by using Dodecylbenzene sulfonic acid (DBSA) as dopant by adding 10% in weight of DBSA to the weight of pyrrole. It was observed that the electrical conductivity decreased gradually for all the samples. This behavior resembles the metallic conductors. It may be mentioned that pure Pyrrole is more like insulator but behaves like semiconductor in the doped form.</p>