摘要
在酸性条件下,利用H2O2在均相条件下对壳聚糖进行降解,通过控制反应时间、反应温度、反应物浓度等条件,制备一系列不同分子量(0.23×104～6.5×104)的水溶性壳聚糖,用FT-IR、TG-DTA对其降解产物进行表征,并对影响降解的主要因素及降解机理进行了讨论。
A series of water soluble chitosans with different molecular weight were prepared by means of H2O2-HAc system in acidic condition through controlling reaction time, temperature and concentration of reactants, etc. The viscosity of these chitosans was measured, meanwhile, the degradation products were characterised by FT-IR, TG-DTA. The affective factors on degradation and the degradation mechanism were also discussed.
出处
《纤维素科学与技术》
CAS
CSCD
2006年第4期41-46,共6页
Journal of Cellulose Science and Technology
基金
天水师范学院科学研究基金资助项目(X3-01)
关键词
水溶性壳聚糖
降解
表征
water-soluble chitosans
degradation
characterize
