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Citation: LI Zhi, LIU Xiao-Fei, XU Huai-Yu, GUAN Yun-Lin, YAO Kang-De. Study on γ-Ray Irradiation Degradation of Chitosan[J]. Chinese Journal of Applied Chemistry, ;2001, 18(2): 104-107. shu

Study on γ-Ray Irradiation Degradation of Chitosan

1.
School of Material Science and Engineering, Tianjin University, Tianjin 300072

Received Date: 15 March 2000
Available Online: 10 July 2000
Fund Project: 国家自然科学基金资助项目(59773002) (59773002)

Chitosan was degraded by ⁶⁰Co V-ray irradiation. The degradation kinetics, effect of irradiation on the degree of deacetylation(DE) of chitosan and the main chain scission mechanism have been studied. The results showed that the irradiation degradation of chitosan obeys the rule of random degradation. On irradiaton, DE was slightly raised and some of the C₁-O-C₄ bonds broke. Terminal groups with structure of W-lactone appeared produced during degradation.
- chitosan,
- irradiation degradation,
- kinetics,
- random degradation,
- chain scission mechanism
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