Journal of Physical Chemistry p. 1671 - 1676 (1991)
Update date:2022-08-18
Topics:
Varadaraj, Ramesh
Bock, Jan
Valint, Paul
Zushma, Stephen
Thomas, Robert
Guerbet surfactants are a unique class of amphiphiles in which the carbon atom β to the head group carries an alkyl substituent.A variety of Guerbet sulfate and monodispers ethoxy sulfate surfactants were synthesized, and their interfacial properties determined at the air-water and decane-water interfaces to determine how Guerbet branching influences interfacial properties.Guerbet surfactants exhibited higher critical micelle concentrations and enhanced effectiveness and efficiency in lowering the surface tension at the air-water interface compared to their linear counterparts.At the decane-water interface the differences between the Guerbet and linear surfactants were not as pronounced as at the air-water interface.The relationship between Guerbet hydrophobe structure and interfacial properties is discussed.
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