A novel two series of self-sequestering surfactants have been prepared by the reaction of
itaconic acid, phthalic anhydride, citric acid with oxypropylated 1, 4-butane diol and
oxypropylated 1, 6-hexane diol. The structure features of these surfactants have been
confirmed by IR and 1H NMR spectra. These surfactants exhibit excellent properties of self-
sequestering. Besides good surface active properties including surface tension, interfacial
tension, low foaming, good wetting properties, good stability towards acidic and basic ...