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A. V. Zatirakha, A. D. Smolenkov, I. A. D’yachkov, O. A. Shpigun

Effect of Alkylating Agent on the Efficiency and Selectivity of New Polymer-based Anion Exchangers


New anion-exchangers for ion chromatography with functional groups of trimethylammonium and 3-chloro-2-hydroxypropyl-N,N-dimethylammonium were obtained. The synthesis included acetylation of styrene-divinylbenzene copolymer, containing 25% of divinylbenzene, reductive amination of carbonyl groups and following alkylation. Iodomethane and epichlorohydrin were used as alkylating agents. Chromatographic properties of anion exchangers were studied by means of suppressed ion chromatography with conductometric detection. Anion exchangers with functional group of 3-chloro-2-hydroxypropyl-N,N-dimethylammonium demonstrate better selectivity and efficiency for all anions in comparison with anion exchangers containing trimethylammonium group.
Moscow University Chemistry Bulletin.
2011, Vol. 52, No. 5, P. 375

Copyright (C) Chemistry Dept., Moscow State University, 2002
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