常州大学学报（自然科学版）2011，Vol.23Issue(3)：28-32,5.
常规自由基聚合反应条件下合成PS-g-PMMA的研究
Synthesis of Graft Copolymer of Poly (Styrene) -g- Poly (Methyl Methacrylate)
摘要
Abstract
Random copolymer poly (styrene-co-chloromethyl styrene) was synthesized by conventional free radical polymerization of styrene (St) and chloromethyl styrene (CMS). The polystyrene macromo-lecular RAFT agent with the structure of dithioester was prepared through the reaction of the random copolymer with copper reagent. In the presence of the polystyrene macromolecule RAFT agent, radical polymerization of methyl methacrylate (MMA) was carried out and the graft copolymer poly (styrene) - g-poly (methyl methacrylate) via RAFT polymerization was prepared. The effects of the ratio of St to CMS, the contents of the MMA monomer and the reaction temperature on the graft copolymer were investigated. The results show that, graft copolymer with higher grafting ratio ( - 75%) and grafting efficiency ( -60%) is obtained when the ratio of St to CMS is 10 : 1, the ratio of MMA to CMS is 80 : 1 and the reaction temperature is 60℃.关键词
大分子RAFT试剂/接枝共聚物/接枝效率/接枝率Key words
macromolecular RAFT agent/ graft copolymer/ grafting efficiency/ grafting ratio分类
化学化工引用本文复制引用
孟金凤,黄文艳,薛小强,郭金龙,蒋必彪..常规自由基聚合反应条件下合成PS-g-PMMA的研究[J].常州大学学报（自然科学版）,2011,23(3):28-32,5.基金项目
国家自然科学基金资助(20574032) （20574032）
