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Journal of Thermal Analysis and Calorimetry
Authors: V. M. Abdul Mujeeb, K. Muraleedharan, M. P. Kannan, and T. Ganga Devi

also subjected to isoconversional studies for the determination of apparent activation energy as a function of α from the sets of isothermals obtained [ 46 ]. A plot of ln t ( t being the time required for reaching a given value of α at a constant

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Journal of Thermal Analysis and Calorimetry
Authors: Sanjiv Arora, Mahesh Kumar, and Mahender Kumar

calculated by “model free” iso-conversional methods. The methods used in calculating activation energy at different conversions ( α ) were Ozawa–Flynn–Wall (O–F–W) [ 12 , 13 ] and Coats–Redfern (modified) [ 14 ]. The final equations used for calculation of

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applying isoconversional methods [ 36 ], establishing therefore the real complexity of the process and partially revealing some mechanistic information about it [ 37 – 43 ]. Because the isoconversional differential method of Friedmann is generally

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Abstract  

In the case of a complex mechanism of two parallel independent reactions, peak maximum evolution methods and model-fitting methods give only a mean value of the kinetic parameters, while isoconversional methods are useful to describe the complexity of the mechanism. Isothermal and non-isothermal isoconversional methods can be used to elucidate the kinetics of the process. Nevertheless, isothermal isoconversional methods can be limited by restrictions on the temperature regions experimentally available because of duration times or detection limits.

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computed using two modified model equations of Kissinger and Ozawa by applying isoconversional technique. Possible correlation of activation energy, cure temperature maximum, reaction rate constant, and frequency factor of various blend compositions have

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Journal of Thermal Analysis and Calorimetry
Authors: Maria Lalia-Kantouri, Maria Gdaniec, Agnieszka Czapik, Konstantinos Chrissafis, Wieslawa Ferenc, Jan Sarzynski, and Christos D. Papadopoulos

to 180 °C (TG-MS). For the calculation of the activation energy, the isoconversional Ozawa–Flynn–Wall (OFW) and the Friedman methods are used. The crystal structure of the compound [Co(3-OCH 3 -salo)(neoc)] ( 1 ) was verified by the single-crystal X

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the following steps [ 25 , 26 ]: (i) Assume h ( x ) = 1 or H ( x ) = 1 to estimate the initial value of the activation energy E a1 . The conventional iso-conversional methods stop the calculation at this step; (ii) using E a1 , calculate a new

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Journal of Thermal Analysis and Calorimetry
Authors: Hernani S. Barud, Clóvis A. Ribeiro, Jorge M. V. Capela, Marisa S. Crespi, Sidney. J. L. Ribeiro, and Younes Messadeq

provide the kinetic parameters by the Capela-Ribeiro iso-conversional non-isothermal method. Kinetic parameters—non-linear isoconversional method The kinetic parameters for the thermal decomposition step of the compound

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curing agent 4,4′-diaminobiphenyl (DABP) system. Thermal kinetics of the system was analyzed based on the isoconversional method and Kamal model. The detailed dynamic mechanical properties and the liquid crystalline transition of DGEBA systems cured with

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biomedical applications. In this study, various iso-conversional methods are used to elucidate the degradation kinetics and thermo-oxidative stability of terpolymer. The purpose of this study is to provide trustworthy kinetic data for prolonging life time

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