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A. V. Zatirakha, A. D. Smolenkov, O. A. Shpigun
Synthesis and
chromatographic properties of new polymer-based anion exchangers
Abstract
New anion-exchangers with functional groups
of trimethylammonium were obtained as a result of the synthesis, which involves
acetylation of styrene-divinylbenzene copolymer (25% of divinylbenzene),
reductive amination of carbonyl groups and following methylation. Two methods
of reductive amination were studied and optimal conditions for these reactions
were chosen. Chromatographic properties of anion exchangers were studied by
means of suppressed ion chromatography with conductometric detection. The
obtained anion exchangers demonstrate high selectivity, maximal efficiency is
30000 theoretical plates.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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