| abstract |
SUMMARY OF THE INVENTION The present invention relates to a vinyl monomer styrene, acrylonitrile, vinylpyridine, Ν, ρ-ρρ'-diphenylmethane bis-maloimide, acrylic acid, and the like. methyl ester or a mixture of vinyl pyridine and divinylbenzene are used, 0.014-1.4 moles of divinyl sulfide are calculated per mole of monomer, and the copolymerization is carried out at 50-90 ° C in the presence of an initiator, and the resulting copolymer is optionally chloromethylated and subsequently \ t animated or hydrolyzed or sulfonated or aminated, and then optionally carboxylated. The copolymers prepared as described above, depending on the type, proportion, and subsequent chemical treatment of the starting vinyl monomer, are high-capacity sorption materials for different materials. -1- |