Preparation of Aryloxy-aluminoxanes and Their Use as Activators in the Bis(imino)pyridyl Iron-catalyzed Oligomerization of Ethylene

Wei Zhang; Bin-Bo Jiang; Jian Ye; Zu-Wei Liao; Zheng-Liang Huang; Jing-Dai Wang; Yong-Rong Yang

doi:10.1007/s10118-018-2146-3

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Preparation of Aryloxy-aluminoxanes and Their Use as Activators in the Bis(imino)pyridyl Iron-catalyzed Oligomerization of Ethylene

ARTICLE | Updated：2021-02-18

- Preparation of Aryloxy-aluminoxanes and Their Use as Activators in the Bis(imino)pyridyl Iron-catalyzed Oligomerization of Ethylene
- Chinese Journal of Polymer Science Vol. 36, Issue 11, Pages: 1207-1216(2018)
- Affiliations：
  
  Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Author bio：
  
  polyejian@zju.edu.cn
- Funds：
- DOI：10.1007/s10118-018-2146-3
  CLC：
- Received：20 March 2018，
  
  Revised：2018-4-11，
  
  Accepted：22 April 2018，
  
  Online First：25 May 2018，
  
  Published：2018-11
- Accepted：
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Citation: Zhang, W.; Jiang, B. B.; Ye, J.; Liao, Z. W.; Huang, Z. L.; Wang, J. D.; Yang, Y. R. Preparation of Aryloxy-aluminoxanes and Their Use as Activators in the Bis(imino)pyridyl Iron-catalyzed Oligomerization of Ethylene. Chinese J. Polym. Sci. 2018, 36(11), 1207–1216.

Wei Zhang, Bin-Bo Jiang, Jian Ye, et al. Preparation of Aryloxy-aluminoxanes and Their Use as Activators in the Bis(imino)pyridyl Iron-catalyzed Oligomerization of Ethylene[J]. Chinese Journal of Polymer Science, 2018, 36(11): 1207-1216.
Citation: Zhang, W.; Jiang, B. B.; Ye, J.; Liao, Z. W.; Huang, Z. L.; Wang, J. D.; Yang, Y. R. Preparation of Aryloxy-aluminoxanes and Their Use as Activators in the Bis(imino)pyridyl Iron-catalyzed Oligomerization of Ethylene. Chinese J. Polym. Sci. 2018, 36(11), 1207–1216. DOI： 10.1007/s10118-018-2146-3.

Wei Zhang, Bin-Bo Jiang, Jian Ye, et al. Preparation of Aryloxy-aluminoxanes and Their Use as Activators in the Bis(imino)pyridyl Iron-catalyzed Oligomerization of Ethylene[J]. Chinese Journal of Polymer Science, 2018, 36(11): 1207-1216. DOI： 10.1007/s10118-018-2146-3.

摘要

Abstract

In this study

a series of aryloxy-aluminoxanes originated directly from the hydrolysis of reaction products of AlMe

and phenols were synthesized

which could serve as effective polymer-retarding activators for the iron-catalyzed ethylene oligomerization. The molar ratios of [PhOH]/[AlMe

] and [H

O]/[Al]

during the preparation were explored and their impacts on the oligomerization activity and product distribution were discussed. To obtain the effective activators with good polymer-retarding effect and relatively high activity

the optimized conditions were proposed to be [PhOH]/[AlMe

] = 0.5 and [H

O]/[Al]

= 0.7. Various aluminoxanes with different [―OH] sources confirmed the importance of using phenols in preparing the effective polymer-retarding activators. By utilizing these aryloxy-aluminoxanes

the mass fraction of polymers in the total products could be reduced to lower than 1.0 wt%

which is much lower than that of the MAO-activated systems (

30 wt%). This is a potential benefit for the industrial application of the iron-catalyzed oligomerization process.

关键词

Keywords

references

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