Enhanced general analytical equation for the kinetics of the thermal degradation of poly(lactic acid) driven by random scission
作者： F Carrasco , Luis A Pérez-Maqueda , PE Sánchez-Jiménez , Antonio Perejón , OO Santana
DOI: 10.1016/J.POLYMERTESTING.2013.04.013
关键词:
摘要: An enhanced general analytical equation has been developed in order to evaluate the kinetic parameters of thermal degradation poly(lactic acid) (PLA) at various linear heating rates and constant rate conditions. This improvement consisted replacing n-order conversion function by a modified form Sestak-Berggren f(α) = c(1−α)nαm, which led better adjustment experimental data, also adequately represented conventional mechanisms for solid-state processes. The so obtained have compared those determined differential isoconversional methods. Given that PLA argued be caused random chain scission reactions ester groups, (α) 2(α1/2−α), corresponding mechanism, tested.
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J. M. Criado, L. A. Pérez-Maqueda, SCTA and Kinetics Springer, Boston, MA. pp. 62- 101 ,(2003) , 10.1007/978-1-4757-3735-6_4
S Vyazovkin, Model-free kinetics Journal of Thermal Analysis and Calorimetry. ,vol. 83, pp. 45- 51 ,(2006) , 10.1007/S10973-005-7044-6
J. Rouquerol, A general introduction to SCTA and to rate-controlled scta Journal of Thermal Analysis and Calorimetry. ,vol. 72, pp. 1081- 1086 ,(2003) , 10.1023/A:1025015609501
H. E. Kissinger, Reaction Kinetics in Differential Thermal Analysis Analytical Chemistry. ,vol. 29, pp. 1702- 1706 ,(1957) , 10.1021/AC60131A045
J.E.J. Staggs, Population balance models for the thermal degradation of PMMA Polymer. ,vol. 48, pp. 3868- 3876 ,(2007) , 10.1016/J.POLYMER.2007.04.075
Sergey Vyazovkin, Nicolas Sbirrazzuoli, Isoconversional Kinetic Analysis of Thermally Stimulated Processes in Polymers Macromolecular Rapid Communications. ,vol. 27, pp. 1515- 1532 ,(2006) , 10.1002/MARC.200600404
J. Wolfrum, S. Eibl, L. Lietch, Rapid evaluation of long-term thermal degradation of carbon fibre epoxy composites Composites Science and Technology. ,vol. 69, pp. 523- 530 ,(2009) , 10.1016/J.COMPSCITECH.2008.11.018
J. M. Criado, L. A. Pérez-Maqueda, M. J. Diánez, P. E. Sánchez-Jiménez, DEVELOPMENT OF A UNIVERSAL CONSTANT RATE THERMAL ANALYSIS SYSTEM FOR BEING USED WITH ANY THERMOANALYTICAL INSTRUMENT Journal of Thermal Analysis and Calorimetry. ,vol. 87, pp. 297- 300 ,(2007) , 10.1007/S10973-006-7813-X
S. Mukherjee, Mojammel H. Mondal, M. Mukherjee, B. P. Doyle, S. Nannarone, Onset Kinetics of Thermal Degradation of Ultrathin Polyacrylamide Films Macromolecules. ,vol. 42, pp. 7889- 7896 ,(2009) , 10.1021/MA901294T
Félix Carrasco, Jose Gámez-Pérez, OO Santana, M Ll Maspoch, None, Processing of poly(lactic acid)/organomontmorillonite nanocomposites: Microstructure, thermal stability and kinetics of the thermal decomposition Chemical Engineering Journal. ,vol. 178, pp. 451- 460 ,(2011) , 10.1016/J.CEJ.2011.10.036