화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.15, No.4, 302-307, June, 2007
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Iron Catalyzed Atom Transfer Radical Polymerization of Methyl Methacrylate Using Diphenyl-2-pyridylphosphine as a Ligand
Zhigang Xue, Seok Kyun Noh†, and Won Seok Lyoo1
  • School of Display & Technology, Yeungnam University, Gyeongbuk 712-749, Korea
  • 1School of Textiles, Yeungnam University, Gyeongbuk 712-749, Korea
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The living radical polymerization of methyl methacrylate (MMA) by atom transfer radical polymerization, (ATRP) employing a Fe(II)X2/diphenyl-2-pyridyl phosphine (PyP) catalytic system (X = Cl, Br ), was investigated using several initiators and solvents at various temperatures. Most of the polymerizations with the PyP ligand were well controlled, with a linear increase in the number average molecular weights (Mn) vs. conversion, with relatively low molecular weight distributions (Mw/Mn = 1.2-1.4) throughout the reactions. The measured weights matched those of the predicted values. The ethyl-2-bromoisobutyrate (EBriB) initiated ATRP of MMA, with the Fe(II)X2/diphenyl-2-pyridyl phosphine catalytic system (X = Cl, Br), was better controlled in p-xylene at 80 ℃than the other solvents used in this study.
Keywords:atom transfer radical polymerization;diphenyl-2-pyridyl phosphine ligand;methyl methacrylate;iron halide;iron (Fe)
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