ZIEGLER-NATTA CATALYSTS WITH INTERNAL ELECTRON DONORS

Yuan Yang; Xiao-fei Dang; Jun-yan Yao; Hua-yi Li; You-liang

doi:10.3724/SP.J.1105.2013.12268

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ZIEGLER-NATTA CATALYSTS WITH INTERNAL ELECTRON DONORS

Research Article | 更新时间：2021-03-19

- ZIEGLER-NATTA CATALYSTS WITH INTERNAL ELECTRON DONORS
- Acta Polymerica Sinica Issue 4, Pages: 511-517(2013)
- 作者机构：
  
  1. 西北工业大学理学院应用化学系,西安,710072
  2. 中国科学院化学研究所北京分子科学国家实验室中国科学院工程塑料重点实验室北京 100190>
- 作者简介：
- 基金信息：
- DOI：10.3724/SP.J.1105.2013.12268
  CLC：
- Published：20 April 2013，
扫描看全文
Yuan Yang, Xiao-fei Dang, Jun-yan Yao, Hua-yi Li, You-liang. ZIEGLER-NATTA CATALYSTS WITH INTERNAL ELECTRON DONORS. [J]. Acta Polymerica Sinica (4):511-517(2013)
DOI：

Yuan Yang, Xiao-fei Dang, Jun-yan Yao, Hua-yi Li, You-liang. ZIEGLER-NATTA CATALYSTS WITH INTERNAL ELECTRON DONORS. [J]. Acta Polymerica Sinica (4):511-517(2013) DOI： 10.3724/SP.J.1105.2013.12268.

摘要

研究了5种新型内给电子体对Ziegler-Natta催化剂结构和催化性能的影响.结果表明

使用两种不同制备工艺制备的氯化镁载体均为晶型

而不同的内给电子体的加入使得催化剂的氯化镁载体具有不同的微晶结构和形态.在催化剂制备阶段中

内给电子体的加入方式对催化剂的性能有很大的影响.在5种内给电子体中

以cis-1

2-环己二甲酸二异丁酯为内给电子体时

催化剂的聚合活性和PP等规度最高

性能与工业催化剂相当;当选用cis-1

2-环己二甲酸二异丁酯为内给电子体

CMMS为外给电子体

硅钛物质的量之比为10及铝钛物质的量之比为100时

催化剂的聚合活性和PP等规度达到最高.

Abstract

Several diesters were developed as internal donors of the Ziegler-Natta catalysts

the molecular structures of the diesters are close to that of diisobutyl phthalate.Furthermore

the effects on the performance of the catalysts were studied.Results showed that the catalysts prepared by different preparation processes have the same MgCl2 lattice style ().The changing of diesters have notable influences on the porosity and the specific surface areas of the catalysts

and the polymerization performance and the PP isotactic index vary with different addition ways of the diesters in the preparation processes of the catalysts. When the internal donor is diisobutyl cis-cyclohexane dicarboxylate

the polymerization activity of the catalyst and the PP index are the highest

reaching the level of the industry catalyst. In the polymerization of CAT-2A

using CMMS as the external electron donor

the ratio of Si to Ti is 10 and the ratio of Al to Ti is 100

the polymerization activity and PP isotactic index reach the highest level.

关键词

内给电子体聚丙烯Ziegler-Natta邻苯二甲酸二异丁酯环己二甲酸二异丁酯

Keywords

Internal electron donorPolypropyleneZiegler-NattaDiisobutyl phthalateDiisobutyl cyclohexane dicarboxylate

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Related Institution

SINOPEC Beijing Research Institute of Chemical Industry

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University

College of Chemistry and Materials Engineering, Beijing Technology and Business University

Beijing Institute of Automatic Control Equipment

Institute of Chemistry, Chinese Academy of Sciences

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