Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Polymerization of Methyl Methacrylate with Nickel $\alpha$-Diimine Catalysts: Effect of the Methyl Position in the Ligand

  • Kim, Il (Department of Polymer Science and Engineering, Pusan National University) ;
  • Kim, Jae-Sung (Department of Polymer Science and Engineering, Pusan National University) ;
  • Han, Byeong-Heui (Department of Polymer Science and Engineering, Pusan National University) ;
  • Ha, Chang-Sik (Department of Polymer Science and Engineering, Pusan National University)
  • Published : 2003.12.01
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Abstract

In the solution polymerizations of methyl methacrylate with (${\alpha}$-diimine)nickel(II)/methylaluminoxane (MAO), we observed effects of the position of two methyl substituents in the ligand on both the activities of the catalysts and the polymer microstructure. ${\alpha}$-Diimine nickel(II) catalysts gave syndiotactic-rich poly(methyl methacrylate) with high molecular weight and narrow molecular weight distribution.

Keywords

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