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E-Journal of Chemistry
Volume 7, Issue 4, Pages 1380-1390

Non-isothermal Kinetic Study of p-Cresol-Dithiooxamide-Formaldehyde Terpolymer

W. B. Gurnule1 and S. S. Katkamwar2

1Department of Chemistry, Kamla Nehru College, Sakkardara Square Nagpur-440009, Maharashtra, India
2Department of Chemistry, Laxminarayan Institute of Technology, Rashtrasant Tukdoji Maharaj Nagpur University, Nagpur-440010, Maharashtra, India

Received 24 October 2009; Accepted 20 December 2009

Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Terpolymer (p-CDF) has been prepared by using the monomer p-cresol, dithiooxanude and formaldehyde in 1:1:2 molar proportions. The structure of p-CDF terpolymer has been elucidated on the basis of elemental analysis and various physicochemical technique like UV-visible, FTIR, 1H NMR and TG analysis. Detailed thermal degradation curve is discussed which shows four steps decomposition. The activation energy (Ea) and thermal stability calculated by using the Sharp Wentworth, Frceman-Carroll methods. Thermodynamics parameters such as entropy change (ΔS), apparent entropy change (S*) and frequency factor (z) have also been evaluated on the basis of the data of Freeman-Carroll method. The order of reaction (n) is found to be 1.05.