Carbon nanotubes comprising hydroxy groups, method for the...

C - Chemistry – Metallurgy – 08 – G

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C08G 59/50 (2006.01) C08G 63/18 (2006.01)

Patent

CA 2758090

The invention relates to carbon nanotubes comprising hydroxy groups, wherein the surface thereof comprises hydroxy alkyl ester groups covalently bound thereon, chosen from the group according to the general formula (1) and/or the general formula (2), wherein (CNT) stands for the surface of the carbon nanotube and R1 and R2 are independently from each other hydrocarbon, an alkyl radical or an aryl radical. The invention further relates to a method for the production thereof by means of reaction of carbon acid groups of the carbon nanotubes with an epoxy, furthermore a polyurethane polymer, wherein said carbon nanotubes are covalently bound, a method for producing a polymer of said kind and use of the carbon nanotubes for producing polymers.

L'invention porte sur des nanotubes de carbone comprenant des groupes hydroxy, leur surface comprenant des groupes ester hydroxyalkylique qui y sont liés par liaison covalente, et qui sont choisis dans le groupe de formule générale (1) et/ou de formule générale (2), où (CNT) représente la surface des nanotubes de carbone, et R1 et R2 représentent chacun indépendamment de l'autre un atome d'hydrogène, un groupe alkyle ou un groupe aryle. L'invention porte en outre sur un procédé pour préparer ces nanotubes de carbone, par réaction de groupes acide carboxylique des nanotubes de carbone avec un époxyde, et en outre sur un olymère de polyuréthanne, dans lequel ces nanotubes de carbone sont liés d'une manière covalente, sur un procédé de préparation d'un polymère de ce type, et sur l'utilisation des nanotubes de carbone pour préparer des polymères.

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