壳聚糖席夫碱紫外特性研究  

Study on UV Characteristics of Chitosan Schiff Base

作　　者：陈菲[1] 杨晓婧[1] 龙可栋[1] 尹爱萍[1] 

机构地区：[1]忻州师范学院化学系,山西忻州034000

出　　处：《广州化工》2015年第14期54-56,共3页GuangZhou Chemical Industry

基　　金：忻州师范学院大学生化学化工创新实践基地资助项目;忻州师范学院大学生科技创新项目

摘　　要：利用壳聚糖分子中C2位上的活泼氨基分别与苯乙醛、2,4-二氯苯甲醛、香草醛进行接枝反应,合成了苯乙醛接枝壳聚糖、2,4-二氯苯甲醛接枝壳聚糖和香草醛接枝壳聚糖,在稀甲酸溶液体系中,探讨了三种产物的紫外吸收特性,结果表明,苯乙醛接枝壳聚糖、2,4-二氯苯甲醛接枝壳聚糖、香草醛接枝壳聚糖在UV-B（280～320nm）区都有吸收,而且香草醛接枝壳聚糖的吸收最大,它不仅覆盖UV-B区,而且可以延伸到UVA（〉320nm）区,是一很好的抗紫外剂。Phenylacetaldehyde grafted chitosan,2,4-dichlorobenzaldehyde grafted chitosan,chitosan grafted by vanillin were synthesized from lively C2 amino of chitosan via grafting phenylacetaldehyde,2,4-dichlorobenzaldehyde,vanillin,respectively.The UV properties of three products in dilute methanoic acid solution were discussed.Results showed that all the products had UV absorption in UV-B（280 ～ 320 nm） region.In particularly,Chitosan grafted by vanillin had maximum absorption.It could not only cover the UV-B regain,but also be extended to UV-A（ 320nm） regain.As the result,it was a very good anti-UV agent.

关 键 词：壳聚糖 苯乙醛 2 4-二氯苯甲醛 香草醛 紫外 

分 类 号：O636.1[理学—高分子化学]