Abstract:Recovery of surfactants and retrieval of hydrocarbons from eluted emulsions in surfactant‐enhanced washing are essential to save useful resources and avoid secondary contamination. A novel nonionic surfactant of C6‐DIB‐PEG has been constructed by using a dynamic imine bond (DIB) as the linker between hexyl amine (C6‐NH2) and an aromatic aldehyde modified polyethylene glycol (PEG‐CHO). The results presented in this study reveal that an oil‐in‐water emulsion of tetradecane‐H2O stabilized by C6‐DIB‐PEG is pH‐swit… Show more
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