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Activation energies for the epoxy system BADGE n = 0/m‐XDA obtained using data from thermogravimetric analysis
Author(s) -
Fraga F.,
Rodríguez Núñez E.
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20010502)80:5<776::aid-app1154>3.0.co;2-8
Subject(s) - thermogravimetric analysis , activation energy , epoxy , thermal decomposition , kinetics , materials science , decomposition , thermodynamics , polymer chemistry , kinetic energy , phase (matter) , chemistry , composite material , physics , organic chemistry , quantum mechanics
In this article we study the kinetics of thermal degradation of the epoxy system BADGE n = 0 /m‐XDA using different kinetic methods with data from thermogravimetric analysis (TGA) in dynamic conditions. Activation energies obtained using different integral methods (Flynn‐Wall‐Ozawa and Coats‐Redfern Methods) are in good agreement with the value obtained using the Kissinger method (204.44 kJ/mol). The solid‐state decomposition mechanism followed by this epoxy system is a decelerated R n type (phase boundary controlled reaction). We have also calculated activation energies using the Van Krevelen and the Horowitz‐Metzger methods. These last methods corroborate the decelerated behavior. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 776–782, 2001