Bulletin of
Vitebsk State
Technological
University
ISSN: 2306-1774 (Online)
ISSN: 2079-7958 (Print)
раб. тел. +375 212 495338
ISSN: 2306-1774 (Online)
ISSN: 2079-7958 (Print)
раб. тел. +375 212 495338
UDC 546.47:66.081.3
https://doi.org/10.24412/2079-7958-2022-2-119-125
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AbstractThe article summarizes results of studies of homophase synthesis of a copolymer based on acrylonitrile and 2-acrylamid-2-methylpropanesulfonic acid synthesized with an acidic comonomer content in a reaction mixture of 30 % (by weight of monomers) in a 51.5 % aqueous solution of sodium thiocyanate. On its basis, fibrous and granular ion-exchange materials were produced and their sorption activity was studied. By the method of acid-base titration, its static exchange capacity (SOE) was determined, which amounted to 1.40 mmol-eq/g. Complexometric titration was used to produce data on the dynamics of sorption of zinc ions by ionite from ZnSO4 solutions in the concentration range of 0.001– 0.1 mol-eq/dm3. The dynamic characteristics of the sorption of zinc ions by the ion exchanger in H+ and Na+-forms are given. It is noted that it is difficult to work with materials containing more than 30 % (by weight of monomers) of the acidic comonomer, due to the strong swelling of the sample. |
Chykunskaya, Vera Sorption Activity of Materials Based on a Fiber-Forming Copolymer of Acrylonitrile and 2-Acrylamid-2-Methylpropanesulfonic Acid / Vera Chykunskaya, Leonid Shcherbina, Valery Ogorodnikov, Iryna Budkute // Vestnik of Vitebsk State Technological University . ─ 2022. ─ № 2(43). ─ P. 119. DOI:10.24412/2079-7958-2022-2-119-125