Nd-Al-α,α′-联吡啶催化体系催化丙烯酸甲酯聚合的研究

Polymerization of Methyl Acrylate with Nd-Al-α,α′-Dipyridyl Coordination Catalysts

研究Nd(naph) 3 Al(i Bu) 3 α ,α′ 联吡啶 (naph =环烷酸 )催化体系催化丙烯酸甲酯的聚合 ,用凝胶色谱研究聚合物分子量和分子量分布。聚合反应对单体浓度呈一级关系 ,表观活化能为 49 34kJ·mol- 1 。

The paper describes the result of the polymerization of MA by coordination catalyst of Nd(naph) 3 Al( i Bu) 3 α,α′ Dipyridyl. Characterization of the structure of polymer was carried out by NMR and IR. Molecular weight and distribution were studied by gel permeation chromatography. Coordinate mechanism was proposed for the MA polymerization by Nd Al α,α′ dipyridyl. Kinetic study shows that the MA polymerization rate is the first order with respect to monomer concentration. The apparent activation energy of MA Polymerization reaction is 49 34 kJ·mol -1 .