Improvement of Adsorption Capacity for Copper (II) Ion by N-Nonanoylation of Chitosan

Abstract
Chitosan was selectively N-nonanoylated, and the influence of the long acyl groups on the adsorption of copper (II) ion was studied. The acylation with nonanoyl chloride was achieved efficiently on a highly swelled chitosan precipitate. The adsorption capacity could be improved markedly by a small extent of acylation.
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