Polymerization of butadiene and isoprene with a neodymium versatate-triisobutylaluminum catalytic system

被引：0
|
作者：
Tinyakova, E.I. [1 ]
Kostitsina, N.N. [1 ]
Sharaev, O.K. [1 ]
Bondarenko, G.N. [1 ]
机构：
[1] Inst. of Petrochemical Synthesis, RAS, Leninskij pr. 29, Moscow, 119991, Russia
来源：
Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya | 2002年 / 44卷 / 09期
关键词：
Aluminum compounds - Butadiene - Chemical bonds - Conformations - Infrared spectroscopy - Neodymium compounds - Organometallics;
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学科分类号：
摘要：
It was shown that the polymerization of butadiene and isoprene initiated by a preformed catalytic system Nd(OCOR)3-i-Bu3Al yields polymers containing up to 80% cis-1,4 units rather than trans polymers. The effect of stereospecificity inversion for the examined system is apparently related to reactions between components which lead to the formation of compounds with Al-O-Al and Al-O-C bonds. The presence of these groups was proved by IR spectroscopy.
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页码：1582 / 1586
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