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Citation: QU Rong-Lin, YANG Qiao-Li, ZHU Kong-Ying, FENG Ruo-Tao. Preparation of Narrow Distribution Oligo-Chitosan[J]. Chinese Journal of Applied Chemistry, ;2006, 23(6): 694-696. shu

Preparation of Narrow Distribution Oligo-Chitosan

1.
a The Center of Analysis, Tianjin University, Tianjin 300072;
2.
b College of Materials Science and Engineering, Tianjin University, Tianjin 300072

Corresponding author: QU Rong-Lin,
Received Date: 15 July 2005
Available Online: 20 February 2006

A narrow distribution low molecular weight chitosan(LMWCTS) was prepared by the oxide degradation system adjusted with trace amount of zinc sulfate.Fluorescence probe was used to investigate the polarity of micro-area of this degradation system,IR and GPC were utilized for measuring the physic-chemical properties of these LMWCTS samples.The system with 3.8 mmol ZnSO₄ had a narrow distribution of LMWCTS (M_w=973,d=1.1) and the yield of LMWCTS was 85%.Those primary structure units of the chitosan have not been altered after degradation.
- low molecular weight chitosan,
- oxide degradation,
- polarity of micro-area
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