Aluminium compounds for producing vinylic polymers

C - Chemistry – Metallurgy – 07 – F

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C07F 5/06 (2006.01) C08F 4/00 (2006.01) C08F 20/00 (2006.01) C08F 230/04 (2006.01)

Patent

CA 2335476

An enolate functionalised reaction intermediate of general formula (I), wherein X is an alkyl group; Z is selected from the group consisting of alkyl, hydrogen, halogen, alkoxy, thiol, aryloxy or ester; n is an integer and is at least one; Y is alkyl or H; the tetradentate ligand around the A1 is optionally substituted. Also claimed is a process for the preparation of the enolate functionalised reaction intermediate and its reaction with a vinylic monomer and a Lewis acid to produce the corresponding vinylic polymer.

L'invention concerne un intermédiaire réactionnel fonctionnalisé par un énolat, de formule générale (I), dans laquelle X représente un groupe alkyle; Z est choisi dans le groupe constitué d'alkyle, hydrogène, halogène, alcoxy, thiol, aryloxy ou ester; n vaut un entier et vaut au moins un; Y représente alkyle ou H; le ligand tétradentate autour de Al est éventuellement substitué. L'invention porte également sur un procédé de préparation de l'intermédiaire réactionnel fonctionnalisé à l'aide d'un énolat et de mise en réaction de celui-ci avec un monomère vinylique et un acide de Lewis pour la production du polymère vinylique correspondant.

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