Kinetic thermal analytical study of saturated mono-, di- and tri-glycerides

A thermal degradation study using TG–DTG thermogravimetry was performed on three saturated fatty acids esterified with glycerol (i.e. glyceryl-tristearate (C 18 ), -tripalmitate (C 16 ) and -trimyristate (C 14 )) at different heating rates. In addition, thermogravimetry (TG) and derivative thermogra...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2013-04, Vol.112 (1), p.519-527
Main Authors: Tomassetti, M., Favero, G., Campanella, L.
Format: Article
Language:English
Subjects:
Analysis
Analytical Chemistry
Calorimetry
Chemistry
Chemistry and Materials Science
Derivatives
Fatty acids
Glycerin
Glycerol
Glycerols
Heating rate
Inorganic Chemistry
Mathematical analysis
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
Saturated fatty acids
Thermal degradation
Thermogravimetry
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Summary:A thermal degradation study using TG–DTG thermogravimetry was performed on three saturated fatty acids esterified with glycerol (i.e. glyceryl-tristearate (C 18 ), -tripalmitate (C 16 ) and -trimyristate (C 14 )) at different heating rates. In addition, thermogravimetry (TG) and derivative thermogravimetry (DTG) of glyceryl di - stearate and glyceryl mono - stearate were also carried out at different heating rates. A deconvolution procedure applied to the first process and overlapping at least two steps between about 200 and 350 °C, enabled the activation energy of decomposition to be determined both by the Kissinger and the Ozawa–Flynn–Wall isoconversional methods for the deconvoluted steps of the above-mentioned fatty acids.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-012-2821-5