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采用Ｎｄ（Ｐ５０７）３－Ａｌ（ｉ－ＢＵ）３聚合体系催化甲基丙烯酸甲酯（ＭＭＡ）和甲基丙烯酸丁酯（ＢＭＡ）聚合．发现介质对聚合反应速率影响甚大．在石油醚中聚合反应速率与单体（ＭＭＡ、ＢＭＡ）、钕盐的浓度分别呈一级关系．ＭＭＡ．ＢＭＡ聚合的表现活化能分别为３３ｋＪ．ｍｏｌ－１和２４ｋＪ．ｍｏｌ－１．ＰＭＭＡ的间同含量达７０％左右．聚合反应属配位自由基机理．
The polymerization of methyl methacrylate (MMA) and butyl methacrylate (BMA) was catalyzed by Nd (P507) 3-Al (i-BU) The effect of the medium on the rate of polymerization was found to be significant. The polymerization rate in petroleum ether and the monomer (MMA, BMA), neodymium concentration showed a first-order relationship. MMA. BMA polymerization performance activation energy was 33kJ. mol-1 and 24kJ. mol-1. PMMA between the content of about 70%. Polymerization is a coordination free radical mechanism.