SYNTHESIS OF 1-POLYBUTENE WITH TITANOCENE CATALYST

HUANG Qigu; ZHU Fangming; WU Qing; LIN Shangan

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SYNTHESIS OF 1-POLYBUTENE WITH TITANOCENE CATALYST

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS OF 1-POLYBUTENE WITH TITANOCENE CATALYST
- Acta Polymerica Sinica Issue 4, Pages: 489-491(2000)
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- Published：20 August 2000，
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HUANG Qigu, ZHU Fangming, WU Qing, LIN Shangan. SYNTHESIS OF 1-POLYBUTENE WITH TITANOCENE CATALYST. [J]. Acta Polymerica Sinica (4):489-491(2000)
DOI：

HUANG Qigu, ZHU Fangming, WU Qing, LIN Shangan. SYNTHESIS OF 1-POLYBUTENE WITH TITANOCENE CATALYST. [J]. Acta Polymerica Sinica (4):489-491(2000) DOI：

摘要

茂金属催化烯烃聚合以其高活性、定向性等特点受到广泛重视 .Ｋａｍｉｎｓｋｙ[1～ 4] 等用二茂基(Ｃｐ、Ｉｎｄ和Ｆｌｕ)过渡金属 (Ｔｉ、Ｚｒ和Ｈｆ)化合物 /ＭＡＯ催化剂催化 1 丁烯聚合

可得到间规(ｓＰＢ)、无规 (ａＰＢ)或等规 (ｉＰＢ)聚 1 丁烯 .Ｌｉｎ[5]和Ｗｕ[6] 分别用单茂基的ＣｐＴｉ(ＯＰｒ) 3/ＭＡＯ和ＣｐＴｉ(ＯＢｚ) 3/ＭＡＯ催化剂进行丙烯聚合

都得到无规聚丙烯 (ａＰＰ)

并研究了催化体系中Ｔｉ氧化....

Abstract

A novel poly(1-butene) was synthesized with η5-pentamethylcyclopentadienyl-tribenzyloxytitanium(Cp*Ti(OBz)3) and modified methylaluminoxane(MAO). The influence of various conditions (e.g.

catalyst composition

temperature

Al/Ti

pressure of monomer

and catalyst concentration) on the catalytic activity

molecular weight of the products were investigated in detail. It was found that the catalyst exhibited highest activity of 91.3kgPB/molTi·h at T=30℃

and Al/Ti(mol/mol)=200. The catalytic activity and molecular weight were sensitive to the TMA content in MAO and external TIBA.Cataltiac activity and molecular weight were decreased with increasing the content of TMA in MAO.External addition of TIBA can deactivated the catalyst.Molecular weight of the products was increased with decreasing temperature and Ti conentration.The catalyst had the highest activity at a Ti concentration of 1.0×10-3mol/L.The molecular weight of poly(1-butene) is high

over one million by GPC method.The results showed that with this catalyst system

a high molecular weight poly(1-butene)can be synthesized.

关键词

茂钛催化剂甲基铝氧烷聚1丁烯

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