Journal
THERMOCHIMICA ACTA
Volume 489, Issue 1-2, Pages 63-69Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2009.01.023
Keywords
Azomonoether dyes; Mode-free kinetics; IKP method; Perez-Maqueda et al. criterion; Master plot procedure
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Thermal analysis of [4-(4-chlorobenzyloxy)-3-methylphenyl](p-tolyl)diazene dye, was performed in dynamic air atmosphere. The Compound behavior was investigated using TG, DTG, DTA and DSC techniques, under non-isothermal linear regime. Kinetic parameters of the two decomposition steps were evaluated by means of multi-heating rates methods, such as mode-free kinetic methods, IKP method, Perez-Maqueda et al. criterion and Master plot procedure. It was shown that the conversion function which describes the process it is not necessary one of the best-fitting functions (when using single-heating rate methods). IKP method can however reduce the possibilities of choosing the true function which can be precisely obtained by applying discrimination methods. (c) 2009 Elsevier B.V. All rights reserved.
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