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T. N. Kas’ynova, A. D. Smolenkov, A. V. Pirogov, O. A. Shpigun
Effect of acyling
agent on the selectivity of anion-exchange resins and efficiency of separation
Abstract
Anion-exchange
resins have been prepared by a two-step procedure of an acylation of
polysterene-divinylbenzene with cross-linking degree 50%, followed by amination
with trimethylamine. The resins contain three, four or five carbon atoms
between the polymer-backbone and the quaternary ammonium exchange group,
respectively. It was found that the increase of the length of the spacer-arm
leads to narrower and more symmetric peaks and affects the selectivity of anion-exchange resins.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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