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Title

A kinetic study on the thermal behaviour of chitosan

AuthorsLópez Gómez, Félix Antonio ; Mercê, A. L. R.; Alguacil, Francisco José; López-Delgado, Aurora
KeywordsChitosan
Isoconversional analysis
Kinetic
Thermal degradation
Issue Date2008
PublisherSpringer
CitationJournal of Thermal Analysis and Calorimetry 91 (2) : 633-639 (2008)
AbstractAbstract The thermal behaviour of chitosan was studied by means of thermogravimetry, mass spectrometry and infrared spectrometry. Kinetic parameters were obtained by advanced kinetic evaluation (differential isoconversional analysis) from DSC curves, in non-isothermal conditions, at several heating rates, between 5 and 30°C min−1. The results showed that the decomposition of chitosan does not follow a single mechanism because both the activation energy and the pre-exponential factor are not constant during the course of the reaction. A comparison with the results obtained by applying different conventional calculating methods is also shown.
Publisher version (URL)http://dx.doi.org/10.1007/s10973-007-8321-3
URIhttp://hdl.handle.net/10261/45253
DOIhttp://dx.doi.org/10.1007/s10973-007-8321-3
ISSN1388-6150
Appears in Collections:(CENIM) Artículos
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