2024-03-29T14:22:30Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/452532017-10-03T12:44:41Zcom_10261_66com_10261_3col_10261_319
2012-02-07T16:05:25Z
urn:hdl:10261/45253
A kinetic study on the thermal behaviour of chitosan
López Gómez, Félix Antonio
Mercê, A. L. R.
Alguacil, Francisco José
López-Delgado, Aurora
Chitosan
Isoconversional analysis
Kinetic
Thermal degradation
Abstract 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.
2012-02-07T16:05:25Z
2012-02-07T16:05:25Z
2008
artículo
Journal of Thermal Analysis and Calorimetry 91 (2) : 633-639 (2008)
1388-6150
http://hdl.handle.net/10261/45253
10.1007/s10973-007-8321-3
eng
http://dx.doi.org/10.1007/s10973-007-8321-3
closedAccess
Springer