Process for producing cation exchange resin

摘要

A cation exchange resin is produced by (a) suspension polymerizing a mixture of (1) styrene, (2) divinylbenzene and (3) acrylic or methacrylic acid or a C1-6 alkyl ester of either acid, and (b) sulfonating the copolymer particles. The sulfonated particles are free of cracks and do not cause brown color in the eluate.