화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.10, No.4, 592-600, July, 2004
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Several Effects on Atom Transfer Radical Polymerization of Methyl Methacrylate using CuX/Cyclopentyl Pyridine-2-Carboximidate Catalyst
Do Weon Lee†
  • Department of Chemical Engineering, University of Seoul, Seoul 130-743, Korea
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Cyclopentyl pyridine-2-carboximidate (CpPCI) has been prepared from the reaction of 2-cyanopyridine with cyclopentanol. The catalytic system CuBr/CpPCI was found to be highly effective for atom transfer radical polymerization (ATRP) of methyl methacrylate (MMA). The effects of solvents, temperature, catalyst/initiator ratio, solvent/monomer ratio, deactivator, and halide on the ATRP of MMA have been studied systematically for the CuX/CpPCI (X = Cl, Br) catalytic system. The optimum conditions for the ATRP of MMA were found to be a [CuBr]o/[CpPCI]o/[EBiB]o/[MMA]o ratio of 1 : 2 : 1 : 400 at 60 ℃ in a veratrole solution, which yielded well-defined PMMA with a narrow molecular weight distribution of 1.14. Polydispersity (Mw/Mn) was as low as 1.06 for the CuBr/CpPCI catalytic system when employing 10% of the deactivator CuBr2.
Keywords:atom transfer radical polymerization (ATRP);carboximidate;controlled/"living" radical polymerization
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