AMINE(POLYFLUOROALKOXYACYL)IMIDE SURFACTANTS

Article abstract of DOI:10.1016/S0022-1139(00)80195-5

Twenty-one examples (10a-d, 11a-l and 12a-e) of a new class of surfactants, the amine(polyfluoroalkoxyacyl)imides, were prepared by the reaction of esters containing polyfluoroalkoxy groups with tertiary alkylaminimides and hydroxyalkylaminimides.Included are five examples of difunctional aminacylimides that contain the hydrophilic portion of the molecule in the middle.These new surfactants are among the most potent known in their ability to form aqueous solutions with very low surface tensions and can be used to prepare stable emulsions of perfluorodecalin in water.Two new esters (ethyl perfluorooctyloxyacetate, 7, and ethyl 1H,1H-perfluorooctyloxyacetate, 9) used as intermediates to the surfactants were prepared by the alkylation of perfluoro- and 1H,1H-perfluorooctanol salts with ethyl bromoacetate.Other esters used in the preparation of the surfactants were derived from oligomers of hexafluoropropene oxide.