THE EFFECT OF BF3·Oet2 ON SYNTHESIZING 1,2-POLYBUTADIENE WITH MOLYBDENUM CATALYST SYSTEM

YANG Yu-wei; XIN Hao-bo; TANG Xue-ming

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THE EFFECT OF BF3·Oet2 ON SYNTHESIZING 1,2-POLYBUTADIENE WITH MOLYBDENUM CATALYST SYSTEM

Research Article | 更新时间：2021-03-19

- THE EFFECT OF BF3·Oet2 ON SYNTHESIZING 1,2-POLYBUTADIENE WITH MOLYBDENUM CATALYST SYSTEM
- Acta Polymerica Sinica Issue 4, Pages: 385-391(1993)
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- Published：20 August 1993，
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YANG Yu-wei, XIN Hao-bo, TANG Xue-ming. THE EFFECT OF BF3·Oet2 ON SYNTHESIZING 1,2-POLYBUTADIENE WITH MOLYBDENUM CATALYST SYSTEM. [J]. Acta Polymerica Sinica (4):385-391(1993)
DOI：

YANG Yu-wei, XIN Hao-bo, TANG Xue-ming. THE EFFECT OF BF3·Oet2 ON SYNTHESIZING 1,2-POLYBUTADIENE WITH MOLYBDENUM CATALYST SYSTEM. [J]. Acta Polymerica Sinica (4):385-391(1993) DOI：

摘要

在以加氢汽油为溶剂

MoCl3(C7H15COO)2(Mo)为主催化剂

(i-Bu)2AlO〈O〉(Al)为助催化剂合成1

2-聚丁二烯的二元催化体系中

添加BF3CH3·OEt2等

对体系的催化活性影响显著。以的混合物为第三组份加入催化体系

较大幅度提高了钼系催化体系的活性。在Mo/Bd=8.0×10-5(摩尔比)

聚合5小时

丁二烯转化率可达到70％。初步搞清了钼催化体系合成的1

2-聚丁二烯中产生凝胶的条件

推测了凝胶的生成原因

考察了聚合条件对催化活性、分子量及微观结构含量的影响。

Abstract

By adding BF3·OEt2 (B) and its derivatives to the MoCl3 (C7H15 COO)2-(i-Bu)2 AlO- (Mo-Al) two-component catalyst system of synthesizing 1

2-polybutadi-ene with hydrogasoline as solvent

the catalytic activity was influenced remarkably. By addingthe product of HO -/BF3·OEt2 = 1. 0 to the catalyst system

the highest catalyt-ic activity of molybdenum carboxylate system was obtained for the first time. A conversion of more than 70% butadiene (Bd) was achieved with Mo/Bd = 8. 0×10-5(molar ratio) at 50℃ for 5hr. The conditions to produce the gel were preliminarily thrashed out in synthesizing 1

2-polybutadiene with molybdenum catalyst system

and the reasons of producing the gel was inferred. The influence of the polymerization conditions on catalytic activity

molecular weight and microstructure was also investigated.

关键词

齐格勒-纳塔聚合铂系催化剂12-聚丁二烯三氟化硼凝胶

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