Kinetics analysis of degradation of polynorbornene ...
|Title||Kinetics analysis of degradation of polynorbornene containing aryl or hetaryl azo dye|
|Author(s)||A. A. Joraid, A. A. Abu-Sehly, S. N. Alamri, S. Y. Al-Raqa, P. O. Shipman, P. R. Shipley, A. S. Abd-El-Aziz|
|Abstract||The Vyazovkin model-free method were applied to study non-isothermal degrdn. of an aryl and hetaryl azo dye-contg. polynorbornene using a differential scanning calorimetric (DSC) technique. The samples were heated in nitrogen, with heating rates in the range 5-50 K min-1. The isoconversional method of Vyazovkin was used to det. the variation of the activation energy for degrdn. with temp., E Î±(T). The values of E Î±(T) were found to be almost independent of temp. The results of isoconversional methods used suggest that the transition follows a single-step kinetics reaction mechanism. [on SciFinder(R)]|
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