C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/82 (2006.01) C08G 64/30 (2006.01) C08G 63/664 (2006.01)
Patent
CA 2373215
The invention concerns a method for obtaining oxacarbonyl polymers comprising steps which consist in: providing at least monomers comprising at least a cyclic oxacarbonyl function, an initiator, and in polymerising or copolymerising said monomers, in bulk or in solution, the initiator being selected among bicyclic guanidine compounds of formula (I) or (II) wherein one and/or the other of the cycles can be substituted, in at least any one of positions 2, 3, 4, 8, 9 and 10 of formula (I) or in at least any one of positions 2, 3, 7 and 8 of formula (II), by at least a radical selected among the alkyl groups with 1 to 6 carbon atoms, the cycloalkyl groups with 5 to 7 carbon atoms, polystyrene hydrocarbon chains.
Le procédé d'obtention de polymères oxacarbonylés comprend les étapes consistant à disposer au moins de monomères comprenant au moins une fonction oxacarbonylée cyclique, d'un agent initiateur, et à effectuer la polymérisation ou la copolymérisation desdits monomères, en masse ou en solution, l'agent initiateur étant choisi parmi les composés de guanidine bicyclique répondant à la formule (I) ou (II) dans laquelle l'un et/ou l'autre des cycles peut être substitué, en au moins l'une quelconque des positions 2, 3, 4, 8, 9 et 10 de la formule (I) ou en au moins l'une quelconque des positions 2, 3, 7 et 8 de la formule (II), par au moins un radical choisi parmi les groupes alkyles ayant de 1 à 6 atomes de carbone, les groupes cycloalkyles ayant de 5 à 7 atomes de carbone, les chaînes hydrocarbonées de polystyrène.
Alvarez Frederic
Baudry Roselyne
Le Perchec Pierre
Centre National de La Recherche Scientifique
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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