AGET ATRP of Methyl Methacrylate by Silica-Gel-Supported Copper(II) Chloride/2-(8-Heptadecenyl)-4,5-Dihydro-1H-Imidazole-1-Ethylamine

作者：Lu, Gang^*; Li, Yi-Min; Lu, Chun-Hua; Xu, Zhong-Zi; Zhang, Hua

来源：Designed Monomers and Polymers, 2010, 13(6): 509-522.

DOI：10.1163/138577210X530585

• Activators
• electron transfer
• atom transfer radical polymerization
• supported catalyst
• imidazole
• immobilization

Copper-mediated activators generated by electron transfer for atom transfer radical polymerization (AGET ATRP) of methyl methacrylate (MMA) were studied in the presence of 2-(8-heptadecenyl)-4,5-dihydro-1H-imidazole- 1-ethylamine (OLC) as ligands that served not only as ligands but also as reducing agents. Well-controlled poly(methyl methacrylate) (PMMA) with narrow molecular weight distribution (M(w)/M(n) = 1.29) was prepared in the presence of Cu(II)Cl(2)/OLC ligand via AGET ATRP. Chain extension of PMMA with MMA was successful and demonstrated well-maintained end-group functionality. Well-controlled PMMA with narrow molecular weight distribution was also prepared via AGET ATRP in the presence of Cu(II) and OLC without any additional reducing agent. A chemically modified silica gel with OLC immobilized on its surface coordinated with CuCl(2) was successfully used as a catalyst system for AGET ATRP of methyl methacrylate using ethyl 2-bromopropanoate as initiator. Also well-controlled poly(methyl methacrylate) (PMMA) with narrow molecular weight distribution (M(w)/M(n) = 1.46) was prepared in the presence of SiO(2)-OLC-Cu(II)Cl(2) complexes catalyst via AGET ATRP.

• 出版日期2010
• 单位南京工业大学