甲基咪唑甲酸盐离子液体中MMA的原子转移自由基聚合  

“LIVING" RADICAL POLYMERIZATION OF METHYL METHACRYLATE IN[mim][HCOO] IONIC LIQUID SYSTEM

作　　者：来国桥[1] 胡自强[1] 邬继荣[1] 吴连斌[1] 李英芝[1] 

机构地区：[1]杭州师范学院有机硅化学及材料技术重点实验室,杭州310012

出　　处：《高分子学报》2006年第3期549-552,共4页Acta Polymerica Sinica

基　　金：浙江省人才基金(基金号R203154)资助项目

摘　　要：“Living" radical polymerization of methyl methacrylate was investigated using a new reaction system,ethyl 2-bromoisobutyrate/CuBr/[mim][HCOO]/MMA,in which [mim][HCOO] ionic liquid was a good solvent to CuBr.Polymerization of methyl methacrylate was carried out in [mim][HCOO] in the absence of any organic ligands.The polymerization mechanism belongs to an ATRP process.The polymerization was closely controlled and was a fast reaction when compared to polymerization in non-polar solvents in [mim][HCOO] at 50℃.The polymers were easily separated from the catalyst.Analysis of the PMMA for residual copper by atomic absorption spectrophotometer,shows a copper content of 3.80×10 -3 %(1% is expected, if no copper is removed).＂Living＂ radical polymerization of methyl methacrylate was investigated using a new reaction system, ethyl 2-bromoisobutyrate/CuBr/[ mim] [ HCOO ]/MMA, in which [ mim] [ HCOO ] ionic liquid was a good solvent to CuBr. Polymerization of methyl methacrylate was carried out in [ mira ] [ HCOO ] in the absence of any organic ligands. The polymerization mechanism belongs to an ATRP process. The polymerization was closely controlled and was a fast reaction when compared to polymerization in non-polar solvents in [ mim] [ HCOO ] at 50℃. The polymers were easily separated from the catalyst. Analysis of the PMMA for residual copper by atomic absorption spectrophotometer, shows a copper content of 3.80 ×10^-3 % （ 1% is expected, if no copper is removed）.

关 键 词：甲基丙烯酸甲酯 原子转移自由基聚合 离子液 

分 类 号：O631[理学—高分子化学]