Study on the Preparation and Solution Property of Fluorine-Containing Oligomeric Surfactants by the Use of Nitrogen-Containing Perfluorocarboxylic Acids
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概要
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Fluorine-containing oligomeric surfactants, HCl salt type and free base type, were prepared by the reaction of polyethyleneimines (Mn = 300,600 and 1200) and a few kinds of perfluoro-N, N-dialkylamino-substituted perfluorocarboxylic acid fluorides. The degree of the introduction of the perfluoro-N, N-dialkylamino-groups at the imino positions was 0.4-2.2 % in all cases. In spite of the lower degree of the introduction of the perfluoroalkyl groups, these compounds exhibited good surface activities.
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