A new polymeric stationary phase with potential chiral properties, obtained by the chemical modification of the parent copolymer of dimethacrylate esters of bisphenol S and divinylbenzene, is presented. Hydroxyl functional groups present in the copolymer chemical structure are blocked by optically active selectors of (R,R)tartramide derivatives. The influence of the chemical modification of the parent copolymer on its porous structure has been studied. (C) 2004 Wiley Periodicals, Inc.