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ABSTRACT
The 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.
GRAPHICAL ABSTRACT
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Long Bai
Long Bai is a postgraduate student at the China Research Institute of the Daily Chemical Industry. His main research field is the synthesis and application of gemini surfactants.
Xiaochen Liu
Xiaochen Liu is an engineer at the China Research Institute of the Daily Chemical Industry. His research interests in the synthesis and application of novel sulfonate surfactants for EOR.
Tiliu Jiao
Tiliu Jiao is an engineer at the China Research Institute of the Daily Chemical Industry. His main research field is the synthesis and application of gemini surfactants.
Yueqing Huo
Yueqing Huo is an engineer at the China Research Institute of the Daily Chemical Industry. Her research interests in the synthesis and application of sulfonate surfactants for EOR.
Jinping Niu
Jinping Niu was born in 1966. Her research interests are the sulfonation/sulfation of organic materials and application of surfactants for EOR.