Mixed micelles of ionic and nonionic surfactants: Quasielastic light scattering and nmr self—diffusion studies of C12E5-SDS micelles

Mixed Micelles of Polyethylene Glycol (23) Lauryl Ether with Ionic Surfactants Studied by Proton 1D and 2D NMR

“…Mixed solutions of poly (ethylene glycol) alkyl ethers and ionic surfactant systems have been intensively investigated (1)(2)(3)(4)(5)(6). Most studies deal with the size and shape of the mixed micelles formed in the aqueous solutions (6)(7)(8). Relatively few studies have examined the arrangement of hydrophilic and hydrophobic chains in mixed micelles (9).…”

Organization of amphiphiles

“…On the other hand, b-C 12 G 2 and C 12 E 6 mix ideally in solution. Guering et al [23] studied the mixed micelle of dodecyl pentaoxyethylene glycol monoether (C 12 E 5 ) and (SDS) by a self-diffusion study of quasielastic light scattering and NMR techniques. The micelle size is found to vary strongly as the SDS content is varied.…”

“…Bakshi et al [20] also reported the synergistic interactions in mixed micelle of dimethylenebis (dodecyldimethylammonium bromide) with a number of conventional cationic surfactants with varying head groups and hydrocarbon chain lengths. Sharma et al [21] studied the selfaggregation of tetradecyltrimethylammonium bromide (TTAB, [CH 3 (CH 2 ) 13 N + (CH 3 ) 3 Br À ]) and polyoxyethylene 23 lauryl ether (Brij-35, [CH 3 (CH 2 ) 11 (OCH 2 CH 2 ) 23 OH]) binary surfactant mixture in aqueous medium using several techniques. Using Rubingh and Maeda's theory they have suggested the attractive interactions between the constituent surfactants in the mixed micelle.…”

Mixed Micellar Aggregates of Anionic and Nonionic Surfactants with Short Hydrophobic Tails. A PGSE-NMR Study

“…Nilsson et al, , with different aims, studied a similar system with the same technique, interpreting the results in terms of intermicellar interactions. They considered surfactants with long hydrophobic chains, in the composition range in which monomers can be completely neglected.…”