Process for the preparation of hydroxy-vinyl-aromatic...

Details Process for the preparation of hydroxy-vinyl-aromatic... Process for the preparation of hydroxy-vinyl-aromatic...

Category

C - Chemistry, Metallurgy

Subcategory

08

Subsubcategory

F

IPC codes

C08F 12/24 (2006.01) C08F 4/04 (2006.01) C08F 4/28 (2006.01) C08F 8/04 (2006.01) C08F 12/22 (2006.01)

Type

Patent

Patent number

CA 2457946

Description

The instant invention relates to a process for the preparation of hydroxy- vinyl-aromatic polymers in particular 4-hydroxystyrene polymers or copolymers by anionic or controlled radical polymerization of the respective monomer, wherein the hydroxy functionality is blocked with a protective group which is subsequently removed in a hydrogenation process. The resulting (co)polymers have a narrow polydispersity and are useful for manufacturing photoresists.

La présente invention concerne un procédé de préparation de polymères aromatiques d'hydroxy-vinyle, notamment de polymères ou de copolymères de 4-hydroxystyrène par la polymérisation anionique ou commandée par des radicaux, du monomère respectif, dans lequel la fonctionnalité hydroxy est bloquée par un groupe protecteur qui est ensuite éliminé dans un processus d'hydrogénation. Le ou les (co)polymères résultant(s) présente(nt) une polydispersité étroite et sont utiles dans la fabrication de photorésines.

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