Application of constant reaction rate TG to the determination of kinetic parameters by Hi-Res TG

Authors
Cai, XE Shen, H Zhang, CH Wang, YX Kong, Z
Citation
Xe. Cai et al., Application of constant reaction rate TG to the determination of kinetic parameters by Hi-Res TG, J THERM ANA, 60(2), 2000, pp. 623-628
Citations number
18
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
60
Issue
2
Year of publication
2000
Pages
623 - 628
Database
ISI
SICI code
1388-6150(2000)60:2<623:AOCRRT>2.0.ZU;2-W
Abstract
A simple operation mode to determine the apparent activation energy E-a is introduced. E-a can be determined with a double-curve method by using a con stant reaction rate (CRR) approach of Hi-Res TG. The most appropriate mecha nism function f(alpha) and frequency factor A are determined by a single-cu rve method when the activation energies provided by the two methods are in good agreement with each other. The deacetylation of EVA copolymer has been used for illustration. Advantages of the CRR are discussed.