Modified halogenated polymer surfaces

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 7/16 (2006.01)

Patent

CA 2720103

Disclosed is a method of preparing a modified halogenated polymer surface, comprising the steps of (a) activating the surface by modification with a polymerisation initiator by (a,) reacting the halogenated polymer surface with sodium azide and subsequent (a2) 1,3 dipolar cycloaddition with an alkine-functionalized initiator; or (a3) reacting the halogenated polymer surface with mercapto-functionalized initiators; and (b) reacting the activated surface obtained in steps (a1)/(a2) or (a3) with polymerizable monomeric units A and/or B. The modified halogenated polymer substrates according to the invention exhibit outstanding properties.

L'invention porte sur un procédé de fabrication d'une surface de polymère halogéné modifiée. Le procédé consiste à : (a) activer la surface par modification avec un initiateur de polymérisation par (a1) réaction de la surface du polymère halogéné avec de l'azoture de sodium et (a2) cycloaddition dipolaire en 1,3 subséquente avec un initiateur fonctionnalisé alcyne ; ou (a3) réaction de la surface du polymère halogéné avec des initiateurs fonctionnalisés mercapto ; et (b) faire réagir la surface activée obtenue dans les étapes (a1)/(a2) ou (a3) avec des unités monomères polymérisables A et/ou B. Les substrats en polymère halogéné modifiés selon l'invention présentent des propriétés remarquables.

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