Isothermal kinetics and thermal degradation of an ...

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Title Isothermal kinetics and thermal degradation of an aryl azo dye-containing polynorbornene
Author(s) A. A. Joraid, S. N. Alamri, A. A. Abu-Sehly, S. Y. Al-Raqa, P. O. Shipman, P. R. Shipley, A. S. Abd-El-Aziz
Journal Thermochimica Acta,
Date 2011
Volume 515
Issue 1-2
Start page 38
End page 42
Abstract The kinetics involved in the thermal degradation of an aryl azo dye-containing polynorbornene was investigated by using isothermal DSC data. The activation energy of the degradation was found to be temperature dependent with two different values of 140 ± 5 and 21 ± 2 kJ mol−1, and the Avrami exponent was observed to increase from 2 to 4 in the temperature range 573–608 K. The degradation mechanism follows the Avrami–Erofeev mechanism for solid state reaction models and it changes from A2 toward A4 for the same temperature range.
DOI 10.1016/j.tca.2010.12.015

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