Patent ID: 7048858

Claim:
A method for post-modification of a porous polymeric polysaccharide support including one of more unreacted double bonds, said method comprising (a) contacting the polymeric support with a liquid phase comprising at least one grafting compound; (b) initiating a free radical in the mixture obtained from step (a) between one or more double bonds on said polymeric support and one or more reactive groups on the grafting compound, and optionally (c) washing the polymeric support to remove any excess of grafting compound; wherein at least one grafting compound is represented by the general formula (I) below: wherein R=a C 1 to C 30 alkyl chain, optionally substituted with one or more hydroxyl, amine, carbonyl, ether, or oxygen; R′=H or CH 3 ; R″=a C 0 to C 30 alkyl chain or oxygen; and X=O n , wherein n is an integer of 0–1, with the proviso that if R″ is oxygen, then n is 0, and if R″ is an alkyl chain, then n is 1.