Ohlandt, Greeley Ruggiero & Perle
Tin-containing organolithium compounds and preparation thereof
The present invention relates to a tin-containing organolithium compound which can be used as anionic polymerization initiators, represented by the following formula (1):R4&#8722;xSn(Ya&#8212;Zm&#8212;Yb&#8212;Li)x&#8195;&#8195;(1)Wherein R, Z and Y are defined as in the specification; x represents a value of 1 or 2; m represents a value of 0 or 1; a represents a value of 0 to 6, b represents a value of 0 to 6, a+b is from 0 to 6, provided that m=1 when x=1. The tin-containing organolithium compounds according to the present invention can be used as initiators to initiate the polymerization of conjugated dienes and/or monovinyl aromatic hydrocarbons, thereby synthesizing various linear, star or telechelic polymers. The present invention also relates to a method for preparing the tin-containing organolithium compounds according to the present invention.
Research Institute of Beijing Yanshan China Petroleum and Chemical Corporation
C C C
C08F C07F C08F
inventional inventional inventional
Liyun Song Aimin Lin Chuanqing Wei Qing
Zhao Lu Liang Xu Li Li Liu