title: Surfactant properties of ionic liquids containing short alkyl chain imidazolium cations and ibuprofenate anions.
abstract: Interfacial tension, electrical conductivity, NMR self-diffusion and DLS experiments have been used to investigate the self-aggregation in water of ionic liquids associating an ibuprofenate anion and 1-alkyl-3-methylimidazolium [C(n)MIm](+) (n = 4, 6, 8) cations. Despite the short alkyl chain on imidazolium cations (n ≤ 8), these ionic liquids exhibit particularly low Critical Aggregation Concentrations (CAC), significantly lower than their parent 1-alkyl-3-methylimidazolium chloride salts. This behaviour is attributed to the formation of catanionic pairs between ibuprofenate and imidazolium.
authors.affiliation: Institut Charles Gerhardt Montpellier, UMR 5253, CNRS-UM2-ENSCM-UM1 Place Eugène Bataillon, CC007, 34095 Montpellier Cédex, France.
authors.forename: Corine
authors.initials: C
authors.lastname: Tourné-Péteilh
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Devoisselle
authors.forename: André
authors.initials: A
authors.lastname: Vioux
authors.forename: Patrick
authors.initials: P
authors.lastname: Judeinstein
authors.forename: Martin
authors.initials: M
authors.lastname: In
authors.forename: Lydie
authors.initials: L
authors.lastname: Viau
mesh_terms: D000838:Anions / Q000737:chemistry; D001565:Benzoates / Q000737:chemistry*; D002412:Cations / Q000737:chemistry; D007052:Ibuprofen / Q000031:analogs & derivatives* / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D000838:Anions; D001565:Benzoates; D002412:Cations; D007093:Imidazoles; D052578:Ionic Liquids; D013501:Surface-Active Agents; C547231:imidazolium ibuprofenate; C502841:1-butyl-3-methylimidazolium chloride; C087766:isobutyl benzoate; D007052:Ibuprofen