Photochemically cross-linked polysaccharide derivatives...

Details Photochemically cross-linked polysaccharide derivatives... Photochemically cross-linked polysaccharide derivatives...

C - Chemistry, Metallurgy

08

B

C08B 37/00 (2006.01) B01J 20/26 (2006.01) B01J 20/32 (2006.01) C07B 57/00 (2006.01) C07C 29/76 (2006.01) C07C 33/18 (2006.01) C07C 33/46 (2006.01) C07D 213/50 (2006.01) C07D 301/32 (2006.01) C07D 303/04 (2006.01) C07D 311/56 (2006.01) C07D 401/04 (2006.01) C08B 15/00 (2006.01) C08B 15/10 (2006.01) C08B 31/00 (2006.01) C08B 33/00 (2006.01) C08J 3/28 (2006.01) C09D 101/08 (2006.01) C09D 103/14 (2006.01) C09D 105/00 (2006.01)

Patent

CA 2226082

The invention relates to substantially photochemically cross-linked polysaccharide derivatives that do not contain photopolymerisable functional groups prior to the cross-linking, which can be used as carrier materials for the chromatographic separation of enantiomers. The present invention relates to photochemically cross-linked polysaccharide derivatives in which the OH groups as OR groups have been esterified or converted into carbamate (urethane) or mixtures thereof, with the proviso that the OR groups do not contain polymerisable double bonds prior to the cross-linking. The photochemically cross-linked polysaccharides according to the invention in conditioned form can also be used as pure polymer for the chromatographic separation of enantiomers.

Cette invention se rapporte à des dérivés de polysaccharide réticulés sensiblement photochimiquement qui ne contiennent pas de groupes fonctionnels photopolymérisables avant la réticulation et qui peuvent servir de matières de support pour la séparation chromatographique d'énantiomères. La présente invention se rapporte à des dérivés de polysaccharide réticulés photochimiquement dans lesquels les groupes OH ou les groupes OR ont été estérifiés ou transformés en carbamate (uréthane) ou à des mélanges de ces dérivés, à condition que les groupes OR ne contiennent pas de double liaisons polymérisables avant la réticulation. Les polysaccharides réticulés photochimiquement conformément à l'invention sous forme conditionnée peuvent également servir de polymère pur pour la séparation chromatographique d'énantiomères.

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