
The adsorption and desorption of a cationic surfactant, didodecyldimethy- lammonium bromide, from water onto a mica surface has been investigated using neutron reflectivity. The surfactant was observed to adsorb strongly as a bilayer that was tenacious to a sustained water wash, but on the addition of an anionic surfactant, sodium dodecyl sulfate, at its critical micelle concentration complete desorption was observed.
Didodecyldimethylammonium bromide, Neutron reflectivity, Mica, Surfactant, Sodium dodecyl sulfate, Catanionic
Didodecyldimethylammonium bromide, Neutron reflectivity, Mica, Surfactant, Sodium dodecyl sulfate, Catanionic
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