Application of Homogeneous Chromium Catalysts in Olefin Polymerization

Tie-qi XU

doi:10.14028/j.cnki.1003-3726.2011.09.012

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Application of Homogeneous Chromium Catalysts in Olefin Polymerization

更新时间：2022-09-18

- Application of Homogeneous Chromium Catalysts in Olefin Polymerization
- Polymer Bulletin Vol. 24, Issue 9, Pages: 170-175(2011)
- 作者机构：
  
  大连理工大学化学学院，大连　116023
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2011.09.012
  CLC：
- Published：2011-09，
  
  Received：15 July 2011，
  
  Revised：29 July 2011，
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Tie-qi XU. Application of Homogeneous Chromium Catalysts in Olefin Polymerization. [J]. Polymer Bulletin 24(9):170-175(2011)
DOI：

Tie-qi XU. Application of Homogeneous Chromium Catalysts in Olefin Polymerization. [J]. Polymer Bulletin 24(9):170-175(2011) DOI： 10.14028/j.cnki.1003-3726.2011.09.012.

摘要

非均相铬催化剂广泛应用于乙烯聚合的工业生产中。人们通过模型化非均相铬催化体系，对聚合过程有了更加清晰的认识，从而加速了均相铬催化剂的发展。虽然这些铬类均相催化剂具有着巨大的应用价值，然而，这类催化剂由于本省具有顺磁性，很难进行结构表征，因而发展缓慢。随着测试技术的发展，顺磁性铬化合物的表征手段也丰富起来。单晶X 射线衍射方法降低了铬化合物测试的难度，成为顺磁性化合物常规测试手段。近年来，由于对高性能聚烯烃产品的需求，使得很多研究小组不断研究出结构新颖的均相铬催化剂，本文综述了近年来铬烯烃聚合催化剂的研究结果。

Abstract

Heterogeneous chromium catalysts are widely used for the ethylene polymerization.The discovery of homogeneous model systems has substantially improved our understanding of the underlying organometallic chemistry and is fueling the current round of innovation hailed as "metallocene technology". Despite their commercial importance

chromium catalysts have inspired less modeling activity

owing possibly to the paramagnetism of relevant organometallic complexes.The potential for paramagnetic organochromium synthesis has brightened in recent years

in part due to technological advancements.The use of single-crystal X-ray diffraction method has dramatically decreased the measure difficulty of chromium complexes

to the point where X-ray structural determination has become almost mandatory for confirming the identity of all new paramagnetic products.The growing demand for high performance polyolefin products in recent years has inspired extensive industrial and academic interest to develop high performance novel homogeneous chromium catalysts.This paper summarizes the latest progresses in chromium based homogeneous catalysts and their application in olefin polymerization.

关键词

铬化合物烯烃聚合均相催化

Keywords

Chromium complexOlefin polymerizationHomogeneous catalysis

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