Polymerization of 4|vinylpridine with complex catalyst of neodymium chloride was studied. The effects of Al/Nd molar ratio, concentration of catalyst, reaction time and temperature on polymerization of 4|vinylpridine were investigated. The results show that different kinds of ligands of the neodymium complex affect the catalytic activity of the complex. The catalytic activity of the neodymium complex is higher than that of simple neodymium chloride. The catalytic activity of polymer|supported catalyst is higher than those of the similar lower molecular system.
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