摘要
在研究玉米淀粉(corn starch,CS)与甲基丙烯酸甲酯(MMA)接枝共聚反应时发现,硝酸浓度为0.1mol/L、硝酸铈铵(CAN)/CS质量比为1/6、MMA/CS质量比为3/2是兼顾单体转化率(C)、接枝率(G)和接枝效率(GE)的最佳反应条件;同时发现,该反应中均聚物的生成不仅可由CAN直接引发,还可能因淀粉自由基或淀粉接枝物自由基的链转移而引发。
The reaction of graft copolymerization of MMA onto corn starch is studied. The concentration of HNO3 is 0. 1mol/L,together with the mass ration of CAN to starch is 1/6 and that of MMA to starch is 3/2 are found to be the best reaction condition. Meanwhile, it is found that monomer free radicals may be produced not only by initiation of CAN directly, but also by the chain transfer reaction from starch free radicals or the free radicals of the starch graft copolymer.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2006年第4期615-617,共3页
Journal of Functional Materials
关键词
淀粉
接枝共聚
硝酸铈铵
均聚物
starch
graft copolymerization
ceric ammonium nitrate
homopolymer
