The nitrogen atmosphere below magnetic stirring is to do poly reaction.After the reaction is over, methylbenzene is added, after filtrating, filter residue is washed by methyl alcohol repeatedly.

• 反应结束后，加入甲苯溶解后过滤，滤渣部分反复用甲醇洗涤，真空干燥得到壳聚糖-接枝-聚己内酯。