Přístupnostní navigace
E-application
Search Search Close
Publication detail
NIRANJAN, P. VOJTOVÁ, L. MARTINOVÁ, L.
Original Title
Deacetylation-induced changes in thermal properties of Sterculia urens gum
Type
journal article in Web of Science
Language
English
Original Abstract
quantitative measurement of degree of deacetylation of Sterculia urens gum and its effect on the thermal properties changes is presented in this study. Sterculia urens gum was deacetylated at varying deacetylation reaction temperature and time. The acetyl group is replaced by hydroxyl which leads to better solubility of the sterculia gum in water. Thermal properties were characterized using differential scanning calorimetry and thermogravimetric analysis. DSC analysis reveals that after the deacetylation, the glass transition temperature appears at around 60 °C of the S. urens gum. After deacetylation, the TG degradation clearly shows three different peaks. Deacetylation reaction temperature plays the major role in the thermal stability and structure of the S. urens gum.
Keywords
Sterculia urens; Deacetylation; Thermal properties; glass transition, DSC
Authors
NIRANJAN, P.; VOJTOVÁ, L.; MARTINOVÁ, L.
RIV year
2015
Released
1. 10. 2015
ISBN
1388-6150
Periodical
Journal of Thermal Analysis and Calorimetry
Year of study
122
Number
1
State
Hungary
Pages from
235
Pages to
240
Pages count
6
BibTex
@article{BUT133272, author="Patra {Niranjan} and Lucy {Vojtová} and Lenka {Martinová}", title="Deacetylation-induced changes in thermal properties of Sterculia urens gum", journal="Journal of Thermal Analysis and Calorimetry", year="2015", volume="122", number="1", pages="235--240", doi="10.1007/s10973-015-4680-3", issn="1388-6150" }