摘要
利用基团转移聚合（ＧＴＰ）技术，在室温厂使用单官能团引发剂，通过对单体加科顺序与时机的控制．合成了一系列不同组成比、不同分子量的聚甲基丙烯酸甲酯－聚丙烯酸正了酯（或乙酯）－聚丙烯腈嵌段共聚物用ＦＴ—ＩＲ，１Ｈ—ＮＭＲ，ＧＰＣ等方法对共聚物进行表征，还探讨了共聚过程活性中心的转移机理．
Living' anionic and cationic polymerization techniques are usually used for controlled block polymerization of vinyl monomers.A fundamentally new method with several advantages over the existing processed was reported in 1983 for the polymerization of acrylic monomers-group transfer polymerization(GTP).It's a new insertion polymerization technique.In this paper,a series of triblock polymers with methacrylate,acrylatc and acrylonitrile segments was synthesized at room temperature via GTP.The polymerization is initiated using dimethyl ketene methyl trimethylsilyl acetal(MTS)in the presence of a nucleophilic catalyst Bu4NH(PhCO2)2.During the preparation, the monomer addition order and timing must be controlled in the order of methacrylate, acrylate and acrylonitrile.The products were characterized by 1H-NMR, FT-IR and GPC.The copolymerization mechanism is also discussed.
出处
《材料研究学报》
EI
CAS
CSCD
1995年第6期551-556,共6页
Chinese Journal of Materials Research
基金
国家自然科学青年基金
福建省自然科学基金
关键词
基团转移聚合
三元嵌段
共聚物
丙烯酸酯
group transfer polymerization triblock polymer poly(meth)acrylate polyacrylonitrile
