摘要
本文研究丙烯酸十八酯在环烷酸钕、三异丁基铝催化体系中的聚合特征,聚合动力学和机理。结果表明络合催化剂能以高收率制备高分子量的聚丙烯酸十八酯。聚合反应速率与单体浓度,环烷酸钕浓度分别呈1级和0.5级关系。聚合表观活化能为36.6KJ/mol。聚合反应属配位自由基机理。
Some characteristics, kinetics and mechanism for the polymerization of octadecyl acrylate with Nd(anph)3-AKi-Bu)3 system have been studied. The polymerization rate is of first order with respect to monomer concentration and 0. 5 order to Nd(naph)3 concentration. The apparent polymerization activation energy Ea 36. 6kJ/mol.
基金
国家自然科学基金
关键词
催化剂
丙烯酸酯
稀土族
环烷酸钕
rare earth cafalysts
octadecyl acrylate
polymerization kinetics
polymerization mechanism
