Article Dans Une Revue Chemical Record Année : 2021

{Cyclopentadienyl/Fluorenyl}-Group 4 ansa-metallocene Catalysts for Production of Tailor-made Polyolefins

Résumé

The development of new metallocene-based polymerization catalysts and innovative processes derived thereof still constitutes a challenge for the manufacturing of polyolefinic materials with tailored properties (e. g. particular microstructure or topology, ultra-high molecular weight, high melting transition, and their combinations) for contemporary commercial applications. This personal account summarizes our continuing endeavors to advance the family of industry-relevant stereoselective propylene polymerization catalysts based on C(1) -symmetric group 4 ansa-metallocenes incorporating multi-substituted fluorenyl-cyclopentadienyl {Cp/Flu} ligands. Within the framework of this project, valuable structural and catalytic data, harvested both for neutral metallocenes and for metallocenium ion-pairs, have been used for rational design of more efficient catalytic systems, reluctant towards side reactions, and for providing new stereoregular value-added polymer materials.

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hal-03102146 , version 1 (04-02-2021)

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Evgueni Kirillov, Jean-François Carpentier. {Cyclopentadienyl/Fluorenyl}-Group 4 ansa-metallocene Catalysts for Production of Tailor-made Polyolefins. Chemical Record, 2021, 21 (2), pp.357-375. ⟨10.1002/tcr.202000142⟩. ⟨hal-03102146⟩
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