Polymerization of methyl methacrylate with Ni(II) alpha-diimine/MAO and Fe(II) and Co(II) pyridyl bis(imine)/MAO

摘要

Polymerizations of methyl methacrylate with (alpha-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 alpha-diimine system showed much higher activity than the pyridyl bis(imine) systems under similar polymerization conditions. References: 24