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The effect of alkylating agent on the efficiency and selectivity of new polymeric anion exchangers

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Moscow University Chemistry Bulletin Aims and scope

Abstract

New anion exchangers for ion chromatography with functional groups of trimethylammonium and 3-chloro-2-hydroxypropyl-N,N-dimethylammonium were obtained. The synthesis included consecutive acetylation of a styrene-divinylbenzene copolymer containing 25% divinylbenzene, reductive amination of carbonyl groups, and subsequent alkylation. Iodomethane and epichlorohydrin were used as alkylating agents. The chromatographic properties of anion exchangers were studied by means of suppressed ion chromatography with conductometric detection. Anion exchangers with the 3-chloro-2-hydroxypropyl-N,N-dimethylammonium group are characterized by better selectivity and higher efficiency for polarizable nitrate and bromide ions, as well as for nonpolarizable chloride, fluoride, nitrite, phosphate, and sulfate ions, compared to those of sorbents with the trimethylammonium group.

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Authors and Affiliations

  1. Analytical Chemistry Division of Chemistry Department of Moscow State University, Moscow, Russia

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

Authors
  1. A. V. Zatirakha
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  2. A. D. Smolenkov
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  3. I. A. D’yachkov
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  4. O. A. Shpigun
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Corresponding author

Correspondence to A. V. Zatirakha.

Additional information

Original Russian Text © A.V. Zatirakha, A.D. Smolenkov, I.A. D’yachkov, O.A. Shpigun, 2011, published in Vestnik Moskovskogo Universiteta. Khimiya, 2011, No. 5, pp. 375–381.

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Zatirakha, A.V., Smolenkov, A.D., D’yachkov, I.A. et al. The effect of alkylating agent on the efficiency and selectivity of new polymeric anion exchangers. Moscow Univ. Chem. Bull. 66, 309–314 (2011). https://doi.org/10.3103/S0027131411050129

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  • DOI: https://doi.org/10.3103/S0027131411050129

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