金属キレートの利用に関する研究-4-C-アルキルEDTAキレートの合成とその性能

概要

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Chelate surfactants were synthesized which having one or two hydrophobic long chained alkyl groups and hydrophilic EDTA-metal chelate ions, and their properties were investigated.<BR>N- (1-carboxypentadecyl) ethylenediaminetriacetic acid (C-monotetradecyl EDTA) and N, N'-bis (1-carboxyundecyl) ethylenediaminediacetic acid (C, C'-didecyl FDTA) were used as the chelating agents and they were treated with salts of some transitional metals.<BR>The formation of each metal chelate waas observed. It was shown from IR spectra, changes of color and from pH effects that the chelates prepared from C-alkyl EDTA and iron sulfate had octahedral chelating structure.<BR>The chelate surfactants thus obtained showed good surface activities. Above all, the chelate surfactant from C, C'-didecyl EDTA and iron sulfate had a particularly superior dipersing power for pigments in coatings.
日本油化学会の論文