Kinetics analysis of degradation of polynorbornene containing aryl or hetaryl azo dye

被引：7

作者：

Joraid, A. A. ^{[1
]}

Abu-Sehly, A. A. ^{[1
]}

Alamri, S. N. ^{[1
]}

Al-Raqa, S. Y. ^{[2
]}

Shipman, P. O. ^{[3
]}

Shipley, P. R. ^{[3
]}

Abd-El-Aziz, A. S. ^{[3
]}

机构：

[1] Taibah Univ, Dept Phys, Madinah, Saudi Arabia

[2] Taibah Univ, Dept Chem, Madinah, Saudi Arabia

[3] Univ British Columbia Okanagan, Dept Chem, Kelowna, BC, Canada

来源：

THERMOCHIMICA ACTA | 2012年 / 529卷

关键词：

Degradation; Polymer kinetics; Differential scanning calorimetry; Non-isothermal study; MODEL-FREE METHOD; HYBRID GENETIC ALGORITHM; ACTIVATION-ENERGY; NONISOTHERMAL KINETICS; CONTAINING POLYMERS; THERMAL-ANALYSIS; DECOMPOSITION; SAMPLE; BIREFRINGENCE; POLYPROPYLENE;

D O I：

10.1016/j.tca.2011.11.007

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The Vyazovkin model-free method were applied to study non-isothermal degradation of an aryl and hetaryl azo dye-containing polynorbornene using a differential scanning calorimetric (DSC) technique. The samples were heated in nitrogen, with heating rates in the range 5-50K min(-1). The isoconversional method of Vyazovkin was used to determine the variation of the activation energy for degradation with temperature, E-alpha(T). The values of E-alpha(T) were found to be almost independent of temperature. The results of isoconversional methods used suggest that the transition follows a single-step kinetics reaction mechanism. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：22 / 24

页数：3

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