Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 40: Issue 2
The thermal degradation kinetics of dextran and pullulan
Authors:
L. Katsikas University of Belgrade Faculty of Technology and Metallurgy Karnegijeva 4 P.O.B. 494 11001 Belgrade Yugoslavia

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K. Jeremic University of Belgrade Faculty of Technology and Metallurgy Karnegijeva 4 P.O.B. 494 11001 Belgrade Yugoslavia

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S. Jovanovic University of Belgrade Faculty of Technology and Metallurgy Karnegijeva 4 P.O.B. 494 11001 Belgrade Yugoslavia

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J. Velickovic University of Belgrade Faculty of Technology and Metallurgy Karnegijeva 4 P.O.B. 494 11001 Belgrade Yugoslavia

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I. Popovic University of Belgrade Faculty of Technology and Metallurgy Karnegijeva 4 P.O.B. 494 11001 Belgrade Yugoslavia

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Pages:
511–517
Online Publication Date:
09 Jan 2007
Publication Date:
01 Jun 1993
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02546620
Keywords:
dextran; kinetics; pullulan; thermal degradation
Restricted access

Abstract  

The effect of molar mass and, in the case of dextran, of the degree of branching on the thermal degradation kinetics of dextran and pullulan was studied in the presence and absence of oxygen. Although the initial mass loss of the dextran samples occurred at higher temperatures than that of the pullulan samples, the overall thermal degradation activation energies were lower for dextran than for pullulan. In the case of dextran the thermal stability was found to decrease with molar mass and degree of branching. The molar mass of pullulan, in the range of 104 to 105 g/mol, appeared to have no significant influence on the thermal characteristics of the samples.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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