Nd-Al双金属配合物催化双烯聚合反应动力学  

KINETICS OF CONJUGATED DIENE POLYMERIZATIONCATALYZED BY NdAl BIMETALLIC COMPLEX

作　　者：董为民[1] 杨继华[1] 逄束芬[1] 黄葆同[1] 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《催化学报》1999年第4期442-444,共3页

基　　金：国家自然科学基金

摘　　要：以ＮｄＡｌ双金属配合物为催化剂，考察了丁二烯和异戊二烯聚合反应的动力学，得到稳态聚合速率方程式为ＲＰ＝ｋ［Ｍ］［Ｎｄ］ｎ（ｎ＝１）；丁二烯比异戊二烯有更大的表观增长速率常数ｋ．这些与聚合体系中是否存在过量的烷基铝无关．The kinetics of butadiene (BD) and isoprene (IP) polymerization catalyzed by NdAl bimetallic complex was studied in cyclohexane solution at 30. The kinetic equation of polymerization rate of BD and IP was obtained as RP=k] n (M=monomer, n=1) and the k of BD polymerization was obviously larger than that of IP, in the presence or absence of triethyl aluminium. The reason for large n value in the kinetic equation of IP polymerization catalyzed by multicomponent rare earth catalyst system was discussed primarily.

关 键 词：钕 铝 双金属配合物 催化 聚丁二烯 聚异戊二烯 

分 类 号：O632.14[理学—高分子化学] O643.36[理学—化学]