基于四齿哌嗪配体Ti（IV）配合物的乙烯聚合和共聚新催化剂

IF 0.9 4区化学 Q4 POLYMER SCIENCE

Polymer Science, Series B Pub Date : 2026-08-03 DOI:10.1134/S1560090426600816

L. A. Rishina, Y. V. Kissin, S. S. Lalayan, V. G. Krasheninnikov, S. S. Gusarov, A. S. Zabolotnov, A. A. Gulin, V. A. Tuskaev, S. Ch. Gagieva, B. M. Bulychev

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New Catalysts for Ethylene Polymerization and Copolymerization Based on Ti(IV) Complexes with a Tetradentate Piperazine Ligand

Two new catalyst systems for the synthesis of high molecular weight polyethylene and ethylene copolymers with linear 1-alkenes (1-hexene, 1-octene, 1-decene and 3-methyl-1-butene) are described. The catalysts are based on Ti(IV) complexes of the LTiX₂ type with a tetradentate bis(phenolate)- piperazine ligand L and with X = Cl or Oi-Pr. The complexes are activated with a bicomponent cocatalyst, a combination of Al(C₂H₅)₂Cl and Mg(C₄H₉)₂ at an [Al]/[Mg] molar ratio of ~3. The catalysts afford the synthesis of UHMW resins, both polyethylene and ethylene/1-alkene copolymers with a low 1-alkene content, as well as the synthesis of high molecular weight ethylene/1-alkene copolymers with the 1-alkene content of over 10 mol %.

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来源期刊

Polymer Science, Series B 化学-高分子科学

CiteScore

1.80

自引率

8.30%

发文量

审稿时长

>0 weeks

期刊介绍： Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed