两种不同引发体系在木薯淀粉与醋酸乙烯酯接枝共聚中的应用

Applying Two Initiators in Graft Polymerization of Vinylacetate onto Cassava Starch

研究了以硝酸铈铵、Fe2+-H2O2为引发体系引发木薯淀粉与醋酸乙烯酯的接枝共聚反应,对一些反应条件如引发剂浓度、反应温度、单体浓度、反应时间等进行了考察,并比较分别以硝酸铈铵、Fe2+-H2O2为引发体系引发木薯淀粉与醋酸乙烯酯接枝共聚的反应,结果表明用Fe2+-H2O2为引发体系的引发效果最佳。

Graft Polymerization of vinylacetate （VAc） onto cassava starch using ammonium nitrate or Fe^2＋-H2O2 as initiator is studied. Reaction conditions of graft polymerization such as concentration of initiators, reaction temperature, concentration of monomer and reaction time were investigated. The result obtained from the graft polymerizations of VAc onto cassava starch initiated with ammonium nitrate or Fe^2＋-H2O2 was compared. The better result is the one initiated with Fe^2＋-H2O2.