The depolymerization mechanism of chitosan by hydrogen peroxide
The depolymerization mechanism of chitosan by hydrogen peroxide
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DOI：
10.1023/a:1027466716950
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发表时间：
2003-12-01
影响因子：
4.5
通讯作者：
Zhao, BY
中科院分区：
文献类型：
--
作者：
Tian, F;Liu, Y;Zhao, BY
采用H2O2水溶液解聚壳聚糖，制备低分子量水溶性壳聚糖。 IR和H-1-NMR研究证实解聚导致壳聚糖的1,4-β-D-葡萄糖苷键断裂。 X射线分析表明，解聚发生在壳聚糖表面的晶体区域，通过所谓的剥离过程，而无定形部分则通过穿透模式解聚。 (C) 2003 年 Kluwer 学术出版社。
Water-soluble chitosan with low molecular weight was prepared by the depolymerization of chitosan with aqueous H2O2 solution. The IR and H-1-NMR studies verify that depolymerization leads to the breakage of 1,4-beta-D-glucoside bonds of chitosan. X-ray analysis shows the depolymerization takes place at the surface of the chitosan in crystal region by so called peeling-off process while the amorphous portion is depolymerized by penetrating pattern. (C) 2003 Kluwer Academic Publishers.