This work presents the results of the synthesis of granular copolymers of acrylonitrile with hexahydro-1,3,5-triacrylyltriazine and their modification with organic amines, in particular diethylamine, as well as a study of the physicochemical characteristics and sorption properties of the obtained ion exchangers. The result of the study was the synthesis of granular ion exchangers with the necessary physicochemical properties based on acrylonitrile and divinylbenzene, N,N´-methylene-bis-acrylamide and hexahydro-1,3,5-triacrylyltriazine, the kinetics of this process was studied. The synthesized copolymers were modified with diethylamine, the physicochemical and ion-exchange properties of the obtained polymers were studied. It has been shown that acrylonitrile, its copolymers coated with divinylbenzene, N,N´-methylene-bis-acrylamide and hexahydro-1,3,5-triacrylyltriazine, as well as granular ion exchangers based on them, can be obtained. For the first time, copolymers of acrylonitrile and hexahydro-1,3,5-triacrylyltriazine with the necessary physicochemical characteristics were synthesized and, on their basis, conditions for obtaining weak anion-exchange resins on a complex basis were developed. The synthesized anion exchangers have complexing properties and can be used in the hydrometallurgy of non-ferrous and heavy metals, purification of waste water from toxic ions, separation and concentration of metal ions.