淀粉与苯乙烯/甲基丙烯酸甲酯乳液共聚合  

Emulsion graft copolymerization of St/MMA onto starch

作　　者：陈苏[1] 唐果东[1] 

机构地区：[1]南京化工大学化工学院,江苏南京210009

出　　处：《南京化工大学学报》2001年第6期92-94,共3页Journal of Nanjing University of Chemical Technology(Natural Science Edition)

摘　　要：研究了淀粉与苯乙烯 (St)、甲基丙烯酸甲酯 (MMA)的接枝聚合反应。以焦磷酸锰 [Mn(H2 P2 O7) 3 ]3 -为引发剂 ,以十二烷基苯磺酸钠为乳化剂 ,考察引发剂浓度、反应温度、单体浓度对原位聚合反应中单体的转化率(X % )、接枝率 (G % )、接枝效率 (GE % )的影响。实验结果表明最高接枝率可达到 5 2 .4 % ,接枝效率可达 77.2 %。It was investigated that the emulsion graft copolymerization of St/MMA onto starch was carried out by manganic pyrophophate as initiator and Sodium dodecyl benzene sulfonate as emulsifier. The effects of conversion of grafted monomers ( X %), yield of grafting ( G %), and grafting efficiency ( E %) in this emulsion copolymerization were also investigated under different initiator concentrations, reaction temperatures and monomer concentrations.Experimental results showed that the maximum yield of grafting and grafting efficiency were 52.4% and 77.2% respectively.

关 键 词：乳液聚合 淀粉 苯乙烯 甲基丙烯酸甲酯 焦磷酸锰 接枝聚合 塑料 改性 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业] TQ316.6