以甲基丙烯酸甲酯为改性单体,以过硫酸铵为引发剂,采用水溶液聚合法制备了一种新型的壳聚糖接枝甲基丙烯酸甲酯的产物,并用红外光谱表征与分析了该接枝产物的结构,研究了引发剂用量、单体用量、反应时间、反应温度对接枝率的影响。结果表明:相对壳聚糖的用量,引发剂用量为0.3g/g,甲基丙烯酸甲酯用量为1.2mL/g,在70℃接枝3.5h后,其接枝率达到80%。 A new type of chitosan-grafted PMMA was prepared by aqueous solution polymerization using methyl methacrylate as modifier and ammonium persulfate as initiator, and characterized by IR The structure of the grafted product, the amount of initiator, the amount of monomer, the reaction time, the reaction temperature on the grafting rate. The results showed that the dosage of initiator was 0.3 g / g, the dosage of methyl methacrylate was 1.2 mL / g, and the grafting rate reached 80% after grafting at 70 ℃ for 3.5 h.