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On the Formation of Water/Oil‐Microemulsions
Author(s) -
Eicke HansFriedrich,
Rehak Juraj
Publication year - 1976
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19760590825
Subject(s) - microemulsion , chemistry , enthalpy , hydrocarbon , micelle , adsorption , dipole , light scattering , chemical engineering , chromatography , analytical chemistry (journal) , organic chemistry , thermodynamics , scattering , pulmonary surfactant , aqueous solution , biochemistry , physics , optics , engineering
The formation of a so‐called water/oil (W/O)‐microemulsion (AOT/isooctane/water) was followed by light scattering and ultracentrifuge measurements. With increasing weighed‐in water concentrations the microemulsion is stabilized by repeated aggregational processes of micelles containing water due to a decrease of the free interfacial enthalpy. This process conforms very satisfactorily to a model describing an adsorption of surfactants at the water/hydrocarbon interface resulting from dipole‐image dipole interactions.