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Combined kinetic analysis of thermal degradation of polymeric materials under any thermal pathway

 

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Opened Access Combined kinetic analysis of thermal degradation of polymeric materials under any thermal pathway
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Author: Sánchez Jiménez, Pedro Enrique
Pérez Maqueda, Luis Allan
Perejón Pazo, Antonio
Criado Luque, José Manuel
Department: Universidad de Sevilla. Departamento de Química Inorgánica
Date: 2009
Document type: Article
Abstract: Combined kinetic analysis has been applied for the first time to the thermal degradation of polymeric materials. The combined kinetic analysis allows the determination of the kinetic parameter from the simultaneous analysis of a set of experimental curves recorded under any thermal schedule. Besides, the method does not make any assumption about the kinetic model or activation energy and allows the analysis even when the process does not follow one of the ideal kinetic models already proposed in literature. In the present paper the kinetics of the thermal degradation of both polytetrafluoroethylene (PTFE) and polyethylene (PE) have been performed. It has been concluded, without previous assumptions on the kinetic model, that the thermal degradation of PTFE obeys a first order kinetic law, while the thermal degradation of PE follows a diffusion-controlled kinetic model.
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URI: https://hdl.handle.net/11441/73495

DOI: 10.1016/j.polymdegradstab.2009.07.006

This work is under a Creative Commons License: 
Attribution-NonCommercial-NoDerivatives 4.0 InternacionalAttribution-NonCommercial-NoDerivatives 4.0 Internacional

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