Process for oxidative functionalization of polymers...

Details Process for oxidative functionalization of polymers... Process for oxidative functionalization of polymers...

C - Chemistry, Metallurgy

08

F

C08F 8/06 (2006.01) C08F 8/00 (2006.01)

Patent

CA 2249318

This invention provides a method by which an alkylstyrene containing polymer may be exclusively functionalized at the primary benzylic carbon site of the styrenic monomer. The process of this invention comprises the treatment of an alkylstyrene containing polymer dissolved in a non-polar liquid medium with an organic hydroperoxide oxidizing reagent in the presence of a catalytically sufficient amount of a chromium compound, to oxidize a portion of the aromatic alkyl groups of the polymer to an oxygen containing functional group.

Cette invention concerne un procédé au moyen duquel un polymère renfermant de alkylstyrènes peut être exclusivement fonctionnalisé au niveau du site du carbone benzylique primaire du monomère styrène. Ce procédé consiste à traiter un polymère renfermant des alkylstyrènes, dissous dans un milieu liquide non polaire, avec un réactif d'oxydation hydroperoxyde organique en présence d'une quantité suffisante d'un catalyseur au chrome, en vue d'oxyder une partie des groupes alkyle aromatiques du polymère pour obtenir un groupe fonctionnel renfermant de l'oxygène.

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