New Types of Activators for Ziegler Systems Involving Alcoholates and Phenolates of Group II Metals

Anton O. Vikhrov; Vladislav A. Tuskaev; Svetlana Ch. Gagieva; Dmitrii A. Kurmaev; Maria D. Evseeva; Evgenii K. Golubev; Kasim F. Magomedov; Daniele Saracheno; Tamara M. Zvukova; Boris M. Bulychev

doi:10.1007/s10118-026-3856-6

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New Types of Activators for Ziegler Systems Involving Alcoholates and Phenolates of Group II Metals

RESEARCH ARTICLE | Updated：2026-11-05

- New Types of Activators for Ziegler Systems Involving Alcoholates and Phenolates of Group II Metals
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-9(2026)
- Affiliations：
  
  a.Department of Chemistry, M. V. Lomonosov Moscow State University, Moscow 119992, Russian Federation
  b.A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119334, Russian Federation
  c.Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Moscow 117393, Russian Federation
- Author bio：
  
  tuskaev@yandex.ru
- Funds：
- DOI：10.1007/s10118-026-3856-6
  CLC：
- Received：28 June 2026，
  
  Accepted：21 August 2026，
  
  Online First：05 November 2026，
  
  Published：2026-10
- Accepted：
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Vikhrov, A. O.; Tuskaev, V. A.; Gagieva, S. C.; Kurmaev, D. A.; Evseeva, M. D.; Golubev, E. K.; Magomedov, K. F.; Saracheno, D.; Zvukova, T. M.; Bulychev, B. M. New types of activators for ziegler systems involving alcoholates and phenolates of Group II metals. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3856-6

Anton O. Vikhrov, Vladislav A. Tuskaev, Svetlana Ch. Gagieva, et al. New Types of Activators for Ziegler Systems Involving Alcoholates and Phenolates of Group II Metals[J/OL]. Chinese Journal of Polymer Science, 2026, 441-9.
Vikhrov, A. O.; Tuskaev, V. A.; Gagieva, S. C.; Kurmaev, D. A.; Evseeva, M. D.; Golubev, E. K.; Magomedov, K. F.; Saracheno, D.; Zvukova, T. M.; Bulychev, B. M. New types of activators for ziegler systems involving alcoholates and phenolates of Group II metals. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3856-6 DOI：

Anton O. Vikhrov, Vladislav A. Tuskaev, Svetlana Ch. Gagieva, et al. New Types of Activators for Ziegler Systems Involving Alcoholates and Phenolates of Group II Metals[J/OL]. Chinese Journal of Polymer Science, 2026, 441-9. DOI： 10.1007/s10118-026-3856-6.

摘要

Abstract

Continuing our research into Ziegler-type post-metallocene catalytic systems activated by organometallic Al/Mg mixtures

we present results obtained by examining the possibility of replacing one of the activator components

dibutyl magnesium

with more readily available and stable magnesium alkoxides and phenolates. Using the Ti(IV) dichloride saligenin complex as a test precatalyst

we demonstrated that the most promising Al/Mg activator composition

(4-

tert

-Bu-C

-O)

Mg/organoaluminum compound (OAC)

has an activating capacity comparable to that of systems with Bu

Mg. New catalytic systems efficiently produce ultra high molecular weight polyethylene (UHMWPE) with molecular weights of 1.0–6.3 million g/mol and a low degree of macromolecular entanglement

as demonstrated by its solution-free processing into high-strength (about 2.7 GPa) and high-modulus (up to 140 GPa) oriented film tapes. The feasibility of using a new Al/Mg cocatalyst for the activation of the titanocene and several post-metallocene precatalysts w

as demonstrated. Replacing magnesium compounds with alkoxides of other Group II metals

and Ba

did not yield effective activators

indicating the unique role of magnesium compounds in these processes.

关键词

Keywords

references

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