Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives
β-cyclodextrin (β-CD) and its derivatives have been widely used to prepare inclusion complexes. However, systematic research on their thermal stabilities, pyrolysis characteristics and kinetics has rarely been reported. In this paper, thermogravimetric analysis was employed to investigate β-cyclodex...
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doaj-04f568c3d32c4048819a5ded6b9ff9912021-09-05T13:59:42ZengSciendoPolish Journal of Chemical Technology1899-47412015-12-011741410.1515/pjct-2015-0061pjct-2015-0061Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivativesZhu Guangyong0Xiao Zuobing1Zhou Rujun2Niu Yunwei3Shanghai Institute of Technology, Shanghai, 201418, PR ChinaShanghai Institute of Technology, Shanghai, 201418, PR ChinaShanghai Institute of Technology, Shanghai, 201418, PR ChinaShanghai Institute of Technology, Shanghai, 201418, PR Chinaβ-cyclodextrin (β-CD) and its derivatives have been widely used to prepare inclusion complexes. However, systematic research on their thermal stabilities, pyrolysis characteristics and kinetics has rarely been reported. In this paper, thermogravimetric analysis was employed to investigate β-cyclodextrin and its two derivatives, 2-Hydroxypropyl-β-cyclodextrin (HP-β-CD) and monochlorotriazinyl-β-cyclodextrin (MCT-β-CD). The pyrolysis characteristics and kinetic parameters were obtained. The results show that three stages can be distinguished during the heating process of the above three samples. The temperature of initial decomposition of HP-β-CD (309.5°C is higher than that of β-CD (297.8°C), while the temperature of initial decomposition of MCT-β-CD (231.4°C) is lower than that of β-CD. For the three cyclodextrins, the thermal stability in descending order is HP-β-CD, β-CD and MCT-HP-β-CD. The activation energy values are 350.6, 303.3 and 113.9 KJ/mol, and the pre-exponential factor values are 1.11×1031, 1.37×1026 and 1.39×1010 for β-CD, HP-β-CD and MCT-β-CD respectively.https://doi.org/10.1515/pjct-2015-0061pyrolysis characteristicskineticsβ-cyclodextrinhydroxypropyl-β-cyclodextrinmonochlorotriazinyl-β-cyclodextrin |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhu Guangyong Xiao Zuobing Zhou Rujun Niu Yunwei |
spellingShingle |
Zhu Guangyong Xiao Zuobing Zhou Rujun Niu Yunwei Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives Polish Journal of Chemical Technology pyrolysis characteristics kinetics β-cyclodextrin hydroxypropyl-β-cyclodextrin monochlorotriazinyl-β-cyclodextrin |
author_facet |
Zhu Guangyong Xiao Zuobing Zhou Rujun Niu Yunwei |
author_sort |
Zhu Guangyong |
title |
Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives |
title_short |
Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives |
title_full |
Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives |
title_fullStr |
Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives |
title_full_unstemmed |
Pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives |
title_sort |
pyrolysis characteristics and kinetics of β-cyclodextrin and its two derivatives |
publisher |
Sciendo |
series |
Polish Journal of Chemical Technology |
issn |
1899-4741 |
publishDate |
2015-12-01 |
description |
β-cyclodextrin (β-CD) and its derivatives have been widely used to prepare inclusion complexes. However, systematic research on their thermal stabilities, pyrolysis characteristics and kinetics has rarely been reported. In this paper, thermogravimetric analysis was employed to investigate β-cyclodextrin and its two derivatives, 2-Hydroxypropyl-β-cyclodextrin (HP-β-CD) and monochlorotriazinyl-β-cyclodextrin (MCT-β-CD). The pyrolysis characteristics and kinetic parameters were obtained. The results show that three stages can be distinguished during the heating process of the above three samples. The temperature of initial decomposition of HP-β-CD (309.5°C is higher than that of β-CD (297.8°C), while the temperature of initial decomposition of MCT-β-CD (231.4°C) is lower than that of β-CD. For the three cyclodextrins, the thermal stability in descending order is HP-β-CD, β-CD and MCT-HP-β-CD. The activation energy values are 350.6, 303.3 and 113.9 KJ/mol, and the pre-exponential factor values are 1.11×1031, 1.37×1026 and 1.39×1010 for β-CD, HP-β-CD and MCT-β-CD respectively. |
topic |
pyrolysis characteristics kinetics β-cyclodextrin hydroxypropyl-β-cyclodextrin monochlorotriazinyl-β-cyclodextrin |
url |
https://doi.org/10.1515/pjct-2015-0061 |
work_keys_str_mv |
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