聚合物载体-稀土金属络合物的研究 ⅩⅥ.聚合物的结构因素与聚合物载体-金属络合物的活性  

STUDY ON POLYMER SUPPORTED RARE EARTH METAL COMPLEXES ⅩⅥ.STRUCTURAL FACTORS OF POLYMER AND CATALYTIC ACTIVITY OF POLYMER SUPPORTED METAL COMPLEX

作　　者：郑文治[1] 李玉良[1] 于广谦[1] 李晓莉[1] 

机构地区：[1]中国科学院长春应用化学研究所,130022

出　　处：《合成橡胶工业》1997年第1期17-20,共4页China Synthetic Rubber Industry

基　　金：国家自然科学基金

摘　　要：合成了一系列不同钕含量的聚(苯乙烯-丙烯酰胺)载体-氯化钕(PSAC·NdCl_3)络合物,并研究了 PSAC 中单体链节的序列分布与 PSAC·NdCl_3络合物催化丁二烯聚合活性的关系。结果表明,当丙烯酰胺链节短序列(n=1)分布和苯乙烯链节长序列(n 不小于25)分布都较高时,PSAC·NdCl_3络合物才具有最佳的催化活性。所得聚丁二烯的微观结构与 PSAC 中单体链节的序列分布无关。A series of poly(styrene-acrylamide) (PSAC)supported neodymium complexes (PSAC·NdCl_3)with different contents of Nd were synthesized.The relationship between the sequence distribution of the monomeric units in the PSAC and thecatalytic activity of the PSAC·NdCl_3 was investigated.The PSAC·NdCl_3 had optimum catalytic activity only when the distributions of short se- quences of acrylamide units(n=1)and long sequences of styrene units(n≥25)were both higher.The microstructure of the polybuta- diene obtained had nothing to do with the distribution of the monomeric units in the PSAC.

关 键 词：高聚物载体 金属络合物 稀土金属 络合物 

分 类 号：O641.4[理学—物理化学] O614.33[理学—化学]