Method of producing comb block-copolymers from...

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 283/06 (2006.01) C08F 293/00 (2006.01) C08G 65/22 (2006.01) C08L 71/02 (2006.01)

Patent

CA 2606663

The invention pertains to a method of producing comb block copolymers from epoxy- functionalized nitroxylethers and further monomers by anionic polymerization followed by nitroxyl mediated controlled free radical polymerization. The block copolymer backbone has defined initiating points where radical grafting of ethylenically unsaturated monomers can take place. Further aspects of the invention are comb block copolymers obtained by this process and the use of such polymers for plastic applications.

Cette invention concerne une méthode de production de copolymères séquencés en peigne à partir de nitroxyléthers fonctionnalisés par époxyde et d'autres monomères, par polymérisation anionique suivie d'une polymérisation radicalaire contrôlée induite par des radicaux de nitroxyle. Le squelette du copolymère séquencé présente des points d'amorce définis où le greffage radicalaire des monomères éthyléniquement insaturés peut intervenir. D'autres aspects de l'invention se rapportent à des copolymères séquencés en peigne obtenus par cette méthode, et l'utilisation desdits polymères dans des applications employant le plastique.

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