摘要
Nd(opr^1)Cl_2与AIR3组成的催化体系为一类新型异戊二烯定向聚合二元稀土催化剂。本文研究了该二元体系催化异戊二烯聚合的规律,结果表明,它能引发异戊二烯高顺式—1,4定向聚合,且其催化聚合活性受烷基铝的影响很大,AIEt3与Nd(opr^1)Cl_2组成的催化剂活性较高,而Al(i-Bu)_3活性很低,几乎不能引起聚合。
Nd(opr^1)Cl_2 in combination with AIR_3 is a new series of binary catalyst system for the stereospecific polymerization of isoprene to produce high cis-1, 4 Polyisoprene. In this paper, the catalytic activity, as well as the microstructure of the polyisoprene have been investigated. The experimental results show that the catalytic activity or conversion is greatly influenced by trialkylaluminum(TEA and TIBA).
出处
《弹性体》
CAS
1991年第1期14-16,共3页
China Elastomerics
关键词
异戊二烯
聚合
活性
polyisoprene,lanthanide catalyst.
