Browse > Article

Estimation of Activation Energy for the Free Radical Polymerization by Using Isoconversional Analysis  

Chung, I. (Department of Applied Chemical Engineering, Mokwon University)
Publication Information
Elastomers and Composites / v.39, no.4, 2004 , pp. 281-285 More about this Journal
Abstract
In this paper, the simple way to evaluate the value of the activation energy for the overall rate of free radical polymerization by using DSC thermograms was studied using free radical polymerization or butylacrylate as a model. Activation ehergies were determined at heating rates of 1, 2, 5, and $10^{\circ}C/min$ by applying the multiple scanning-rate methods of Kissinger, Osawa, and half-width methods as well as the single rate method of Barrett. The value of the overall activation energy measured was closely matched with the values calculated from individual data. This work also demonstrated that the use of the isoconversional method was a simple and effective way to estimate the activation energy for the overall free radical polymerization.
Keywords
activation energy; free radical polymerization; butylacrylate; isoconversional analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. Brandrup, E. H. Immcrgut, and E. A. Grulke, 'Polymer Handbook', 4th Ed., John Wiley & Sons, New York, 1999
2 R. B. Prime, 'Thermosets', in Thermal Characterization of Polymeric Materials, 2nd Ed., Academic Press, New York, 1997
3 J. H. Flynn, 'Thermal Methods in Polymer Analysis', S. W. Shalaby, Ed., Franklin Inst. Press, Philadelphia, 1978
4 S. V. Vyazovkin, 'A Unified Approach to Kinetic Processing of Nonisothennal Data', Int. J. Chem. Kinet., 28, 95 (1996).   DOI   ScienceOn
5 S. V. Vyazovkin and C. A. Wight, 'Kinetics in Solid', Annu. Rev. Phys. Chern., 48, 119 (1997)
6 P. J. Flory, 'Principle of Polymer Chemistry', Cornell University Press, London, 1953
7 A. M. North, 'Reactivity, Mechanism and Structure in Polymer Chemistry', Wiley-Interscience, New York, 1974