Open chain alkoxyamine compounds and their use as...

Details Open chain alkoxyamine compounds and their use as... Open chain alkoxyamine compounds and their use as...

C - Chemistry, Metallurgy

07

C

C07C 239/18 (2006.01) C07C 219/06 (2006.01) C07C 219/14 (2006.01) C07C 237/06 (2006.01) C07C 237/24 (2006.01) C07C 239/12 (2006.01) C07C 239/16 (2006.01) C07C 239/20 (2006.01) C07C 255/16 (2006.01) C07C 255/46 (2006.01) C07C 291/04 (2006.01) C07D 309/12 (2006.01) C08F 291/00 (2006.01) C08F 293/00 (2006.01) C08L 51/00 (2006.01) C08L 53/00 (2006.01) C09J 151/00 (2006.01) C09J 153/00 (2006.01)

Patent

CA 2337482

The invention relates to a compound of formula (Ia), (Ib) or (Ic). The open chain alkoxyamine compounds are useful for the polymerization of ethylenically unsaturated monomers. The compounds of the present invention provide polymeric resin products having low polydispersity. The polymerization process proceeds with enhanced monomer to polymer conversion efficiency. In particular, this invention relates to stable free radical-mediated polymerization processes which provide homopolymers, random copolymers, block copolymers, multiblock copolymers, graft copolymers and the like, at enhanced rates of polymerization and enhanced monomer to polymer conversions.

L'invention porte sur un composé d'alkoxyamine à chaîne ouverte de formule (Ia), (1b) ou (Ic) utile pour la polymérisation de monomères éthyléniquement insaturés. Lesdits composés sont des résines polymères à faible capacité de polydispersion. Les processus de polymérisation assurent une conversion de monomères en polymères à rendement amélioré. Il s'agit en particulier de processus stables de polymérisation, induits par des radicaux libres, donnant des homopolymères, des polymères aléatoires, des copolymères blocs, des copolymères greffés et autres, avec un taux accru de polymérisation et une conversion plus élevée de polymères en monomères. -

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