process for the preparation of silica containing polymer beads

摘要

A silicon-dioxide-containing polymer bead is prepared by producing a mixture of styrene, crosslinker, finely divided surface-modified silicon dioxide, and free-radical initiator; and curing the resultant mixture in aqueous phase at elevated temperature to give a polymer bead. An independent claim is also included for a method for preparing ion exchangers, chelating resins, chromatography resins, catalysts or adsorber resins comprising preparing same with the silicon-dioxide-containing polymer bead prepared by the inventive method.