Abstract
ABSTRACTThe interfacial tension, wettability, foam and emulsification properties of di-tetrapropylene diphenyl ether disulfonates (C12-DADS) gemini-type surfactant have been studied and compared to mono-tetrapropylene diphenyl ether disulfonates (C12-MADS) and tetrapropylene benzene sulfonates (C12-BAS). The results show that the C12-DADS have a lower interfacial activity compared to that of C12-MADS and C12-BAS. The wettability of the three surfactants decreases in the order C12-BAS > C12-DADS > C12-MADS. For foam properties, the foamability and foam stability of C12-MADS and C12-DADS is lower than that of C12-BAS. In addition, the emulsification ability increase in the order C12-DADS < C12-MADS < C12-BAS.
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