HIGH CIS-1,4-POLYBUTADIENE BY PARE-EARTH CATALYST

Wei Jin-zhu; Liao Yu-zhen; Hu Zhen-ya

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HIGH CIS-1,4-POLYBUTADIENE BY PARE-EARTH CATALYST

Research Article | 更新时间：2021-03-19

- HIGH CIS-1,4-POLYBUTADIENE BY PARE-EARTH CATALYST
- Acta Polymerica Sinica Issue 5, Pages: 342-346(1983)
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- Published：20 October 1983，
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Wei Jin-zhu, Liao Yu-zhen, Hu Zhen-ya. HIGH CIS-1,4-POLYBUTADIENE BY PARE-EARTH CATALYST. [J]. Acta Polymerica Sinica (5):342-346(1983)
DOI：

Wei Jin-zhu, Liao Yu-zhen, Hu Zhen-ya. HIGH CIS-1,4-POLYBUTADIENE BY PARE-EARTH CATALYST. [J]. Acta Polymerica Sinica (5):342-346(1983) DOI：

摘要

本文较详细地考察了丁二烯在Nd(naph)3-Al(i-C4H9)2H-Al(i-C4H9)2Cl催化体系中聚合时

催化剂用量及组份配比

聚合温度对聚合物微观结构及分子量的影响。首次采用稀土催化体系合成出了[η]甲苯30℃为3.0-3.5(分升/克)

顺-1

4链节含量达99％的聚丁二烯。提出了聚合物的活性链端为π-烯丙基氯化物结构

聚合物的微观结构取决于活性链端的链增长和异构化的相对速度的假设。

Abstract

A polybutadiene of 99% cis-1

4 content with [η]tol30℃ in the range of 3.0-3.5 (dl/g) is prepared for the first time using rare-earth coordination catalyst. It is postulated that the microstructure of polybutadiene is controlled by relative rate of propagation to isomerization of living chain which is assumed to have a structuer of π-allyl neodymium complex.

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