The surface free-radical graft polymerization of 2-O-meth-acryloyloxyethoxyl-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyrano syl)-(1-4)-2,3,6-tri-O-acetyl-beta-D-glucopyranoside onto silica gel particles has been carried out with azobis (isobutyronitrile) as initiator. The grafting reaction conditions and the glycopolymer-grafted silica gel particles have been investigated in detail. Chromatographic experiments have been attempted on glycopolymer-modified silica gel particles as a stationary phase under normal phase conditions, and it was found that a certain separation effect of the quercetin and its derivant isorhamnetin was achieved. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 116: 1611-1616, 2010