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Citation: WANG Li, WANG Qin, WANG Ai-Qin. Synthesis,Moisture Adsorption and Moisture Retention Capacities of Low Molecular Weight N-Succinyl-chitosan[J]. Chinese Journal of Applied Chemistry, ;2005, 22(6): 688-690. shu

Synthesis,Moisture Adsorption and Moisture Retention Capacities of Low Molecular Weight N-Succinyl-chitosan

WANG Li ^a,b ,
WANG Qin ^a ,
WANG Ai-Qin ^a,,

1.
a Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;
2.
b Graduate School of the Chinese Academy of Sciences, Beijing

Corresponding author: WANG Ai-Qin,
Received Date: 28 August 2004
Available Online: 13 November 2004

Low molecular weight N-succinyl-chitosans with different degrees of substitution were synthesized by controlling reaction temperature,reaction time,and the molar ratio of the low molecular weight chitosan to succinic anhydride.The structure of the low molecular weight N-succinyl-chitosan was characterized by infrared spectroscopy (IR),by which -COCH₂CH₂COOH was proved to be introduced to the -NH₂ of the low molecular weight chitosan.The moisture adsorption and moisture retention capacities of the low molecular weight chitosan derivatives with different degrees of substitution were investigated.The results indicate that the moisture adsorption and moisture retention capacities of the low molecular weight N-succinyl-chitosan increase with the increase of the degree of substitution.When the degree of substitution is greater than 38%,the derivatives have better moisture adsorption and moisture retention capacities than hyaluronic acid.
- low molecular weight chitosan,
- low molecular weight N-succinyl-chitosan,
- moisture adsorption,
- moisture retention
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