Study on the Thermal Decomposition Kinetics and Calculation of Activation Energy of Degradation of Poly(o-toluidine) Using Thermogravimetric Analysis

Document Type : Research Article


1 National Center of Excellence in Physical Chemistry, University of Peshawar, 25120 Peshawar, PAKISTAN

2 Institute of Chemical Sciences, University of Peshawar, 25120 Peshawar, PAKISTAN

3 Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University,65178 Hamedan, I.R. IRAN


Thermo Gravimetric Analysis (TGA) analysis was employed to investigate activation energy (Ea) for the process of degrading of poly(o-toluidine) (POT) applying Horwitz & Metzger, Coats & Redfern and Chan et al., methods. POT was synthesized by chemical oxidative polymerization method using Ammonium per Sulphate (APS) as an oxidant while Dodecylbenzene Sulphonic Acid (DBSA) and sulfuric acid as co-dopants. Different samples, synthesized by variations in the reactions parameters, were evaluated in order to choose the one with the highest activation energy of degradation. Additional characterization of the polymer was carried out through different techniques such as Scanning Electron Microscopy (SEM), UltraViolet Visible spectroscopy (UV-Vis) and X-Ray Diffraction (XRD) analysis.


Main Subjects

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