NEW FUNCTIONALIZED SORPTION MATERIAL BASED ON INDUSTRIAL ANION EXCHANGER

The origin of the problem is associated with the expansion of application areas of ion-exchange resins used on an industrial scale. The aim of the research is to obtain polyampholytes with new sorption properties through secondary modification of ion-exchange resins. The methodology involved the use of a heat-resistant round-bottom flask containing AN-31 ion-exchange resin and an aqueous solution of the sodium salt of a chloroacetic acid derivative. The scientific novelty of the work consists in developing methods for polyampholyte synthesis, studying reaction kinetics and reaction order, and obtaining graphical dependences of static exchange capacity on various parameters. As a result, the relative ratios of reagents, the dependences of static exchange capacity on temperature, time, and concentration were determined. Infrared spectra were analyzed and the reaction order was calculated. The obtained sample exhibits polyampholytic nature. An increase in the reagent ratio leads to an increase in the static exchange capacity. The synthesis was carried out based on a modification reaction.

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