Artículo
Scission kinetic model for the prediction of polymer pyrolysis curves from chain structure
Autor/es | Pérez Maqueda, Luis Allan
Sánchez Jiménez, Pedro Enrique Perejón Pazo, Antonio García Garrido, Cristina Benítez Guerrero, Mónica Criado Luque, José Manuel |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica |
Fecha de publicación | 2014 |
Fecha de depósito | 2018-05-07 |
Publicado en |
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Resumen | There is a significant interest in correlating polymer structure with thermal degradation behavior. Thus, polymer pyrolysis curves could be predicted from the chemical structure of the polymer. Recent proposals correlate ... There is a significant interest in correlating polymer structure with thermal degradation behavior. Thus, polymer pyrolysis curves could be predicted from the chemical structure of the polymer. Recent proposals correlate the kinetic temperature function directly with the chemical structure of the polymer by means of the dissociation energy while assuming a semiempirical first order model for the reaction fraction function. However, first order model lacks physical meaning and it produces significant deviations of the predicted curves, mostly under isothermal conditions. Thus, in this work an upgrade of the method is proposed by using a new random scission kinetic model. The newly proposed kinetic equation has been checked by fitting the experimental data reported by different authors for the thermal pyrolysis of polystyrene. It has been demonstrated that it accounts for the experimental data of polymer degradation under different heating schedule with considerably higher precision than the previously assumed first order kinetics |
Agencias financiadoras | Junta de Andalucía Gobierno de España |
Identificador del proyecto | TEP-7858
CTQ2011-27626 |
Cita | Pérez Maqueda, L.A., Sánchez Jiménez, P.E., Perejón Pazo, A., García Garrido, C., Benítez Guerrero, M. y Criado Luque, J.M. (2014). Scission kinetic model for the prediction of polymer pyrolysis curves from chain structure. Polymer Testing, 185 (1), 167-178. |
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