Study on the Thermal Decomposition of the Sulphated Polysaccharide Hal-A from Haliotis diverisicolor Reeve

Chin. J. Org. Chem. ›› 2003, Vol. 23 ›› Issue (10): 1149-1151. Previous Articles Next Articles

鲍鱼多糖Hal-A的热分析研究

佘志刚;胡谷平;郭志勇;林永成;林木良

中山大学化学与化学工程学院;中山大学测试中心

发布日期:2003-10-25

Study on the Thermal Decomposition of the Sulphated Polysaccharide Hal-A from Haliotis diverisicolor Reeve

She Zhigang;Hu Guping;Guo Zhiyong;Lin Yongcheng;Lin Muliang

School of Chemistry and Chemical Engineering, Zhongshan University;Test Centre, Zhongshan University

Published:2003-10-25

Abstract

The thermal decomposition of the sulphated polysacchaiide Hal-A from Haliotis diverisicolor Reeve has been studied by using thermogravimetry (TG), thennogravimetry-infrai-ed (TG-IR), differential thermogravimetry (DTG) and differential scanning calorimetry (DSC) in air and N_2. The results indicate that Hal-A is rapidly degraded at 276 ℃ (air) and 281 ℃ (N_2), respectively. It is exothermic in the air atmosphere and endothermic in the N_2 atmosphere. Comparing with chitin and starch, the thermal stability of the sulphated polysaccharide Hal-A and heparin is lower. The results of TG- IR analysis demonstrate that Hal-A is decomposed into CO_2, H_2O, alcohols, oxo-compounds etc and remains mainly contain Na_2SO_4 and carbon.

Key words: sulphated, POLYSACCHARIDE, TG, DSC, THERMAL STABILITY

CLC Number:

O621

Cite this article

She Zhigang;Hu Guping;Guo Zhiyong;Lin Yongcheng;Lin Muliang. Study on the Thermal Decomposition of the Sulphated Polysaccharide Hal-A from Haliotis diverisicolor Reeve[J]. Chin. J. Org. Chem., 2003, 23(10): 1149-1151.

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鲍鱼多糖Hal-A的热分析研究

Study on the Thermal Decomposition of the Sulphated Polysaccharide Hal-A from Haliotis diverisicolor Reeve

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