アニス酸アミド-エチレンオキシド付加重合体の合成

概要

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The preparation of etho-anisic acid amide as a nonionic surfactant was studied. The reaction products always contained unreacted amide and polyethyleneoxide as a byproduct. Polyethyleneoxide was separated from the reaction product by gel filtration. Fractionation of the reaction mixture into components was achieved more effectually by column chromatography (silica gel) than by gel filtration (Sephadex), although the former required much longer time. The fractionated samples were examined by thin layer chromatography, infrared spectroscopy and nuclear magnetic resonance. The average chain length of polyoxyethylene in each sample was determined by nuclear magnetic resonance. From the measurements of specific gravity and surface tension in aqueous solution, it was concluded that these samples reduced surface tension only a little and did not form micelles.
社団法人日本油化学会の論文