title: Anionic surfactants and surfactant ionic liquids with quaternary ammonium counterions.
abstract: Small-angle neutron scattering and surface tension have been used to characterize a class of surfactants (SURFs), including surfactant ionic liquids (SAILs). These SURFs and SAILs are based on organic surfactant anions (single-tail dodecyl sulfate, DS, double-chain aerosol-OT, AOT, and the trichain, TC) with substituted quaternary ammonium cations. This class of surfactants can be obtained by straightforward chemistry, being cheaper and more environmentally benign than standard cationic SAILs. A surprising aspect of the results is that, broadly speaking, the physicochemical properties of these SURFs and SAILs are dominated by the nature of the surfactant anion and that the chemical structure of the added cation plays only a secondary role.
authors.affiliation: School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom.
authors.forename: Paul
authors.initials: P
authors.lastname: Brown
authors.forename: Craig
authors.initials: C
authors.lastname: Butts
authors.forename: Robert
authors.initials: R
authors.lastname: Dyer
authors.forename: Julian
authors.initials: J
authors.lastname: Eastoe
authors.forename: Isabelle
authors.initials: I
authors.lastname: Grillo
authors.forename: Frédéric
authors.initials: F
authors.lastname: Guittard
authors.forename: Sarah
authors.initials: S
authors.lastname: Rogers
authors.forename: Richard
authors.initials: R
authors.lastname: Heenan