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Polymerization of Methyl Methacrylate with Ni(II) α-Diimine/MAO and Fe(II) and Co(II) Pyridyl Bis(imine)/MAO

✍ Scribed by Il Kim; Jeong-Mi Hwang; Jin Kook Lee; Chang Sik Ha; Seong Ihl Woo

Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 110 KB
Volume: 24
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200390075

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✦ Synopsis

Abstract

Polymerizations of methyl methacrylate with (α‐diimine)nickel(II)/methylaluminoxane (MAO) and (pyridyl bis(imine))iron(II) and (pyridyl bis(imine))cobalt(II)/MAO are reported. Effects of structural variation of the ligand on the activities of catalysts and polymer microstructure are described. The catalyst systems gave syndio‐rich poly(methyl methacrylate). The α‐diimine system showed much higher activity than the pyridyl bis(imine) systems under similar polymerization conditions.
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## Abstract The polymerization of methyl methacrylate (MMA) was investigated using a series of bis(β‐ketoamino)nickel(II) complexes in combination with methylaluminoxane in toluene solution. The binary catalyst is necessary for initiating MMA polymerization and producing PMMA with high molecular we