玉米淀粉与丙烯酰胺的接枝共聚研究

Study on Graft Copolymerization of Acrylamide onto Starch

讨论了玉米淀粉与丙烯酰胺 (AM)接枝共聚的反应规律 ,考察了单体浓度、引发剂浓度、反应温度、反应时间对接枝率和接枝效率的影响 ,结果表明 :当 [AM ] =1 2mol/L、[KPS] =4～ 5mmol/L、反应温度为 60℃、反应时间为 4h时 。

The graft copolymerization of acrylamide(AM)onto corn starch initiated by potassium persulfate(KPS)was studied.The influence of the concentration of acrylamide and potassium persulfate, temperature and polymerization time on graft percentage and grafting efficiency was investigated.The experimental results showed that both the graft percentage and grafting efficiency were high when =1 2 mol/L,=4～5 mmol/L,and the reaction is carried out at about 60 ℃ for 4 h.