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Titolo:
Synthesis and surfactant properties of symmetric and unsymmetric sulfosuccinic diesters, Aerosol-OT homologues
Autore:
Baczko, K; Chasseray, X; Larpent, C;
Indirizzi:
Univ Versailles St Quentin Yvelines, SIRCOB, CNRS, ESA 8086, F-78035 Versailles, France Univ Versailles St Quentin Yvelines Versailles France F-78035 es, France Univ Reunion, F-97715 St Denis 9, France Univ Reunion St Denis France 9Univ Reunion, F-97715 St Denis 9, France
Titolo Testata:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
fascicolo: 11, , anno: 2001,
pagine: 2179 - 2188
SICI:
1472-779X(200111):11<2179:SASPOS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMINO-ACID ESTERS; AOT REVERSED MICELLES; NMR CHEMICAL-SHIFTS; CAPILLARY-ELECTROPHORESIS; ELECTROKINETIC CHROMATOGRAPHY; ENANTIOSELECTIVE HYDROLYSIS; BIOORGANIC REACTIONS; CHIRAL SURFACTANTS; MICROEMULSIONS; SEPARATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Larpent, C Univ Versailles St Quentin Yvelines, SIRCOB, CNRS, ESA 8086, 45Ave Etats Unis, F-78035 Versailles, France Univ Versailles St Quentin Yvelines 45 Ave Etats Unis Versailles France F-78035
Citazione:
K. Baczko et al., "Synthesis and surfactant properties of symmetric and unsymmetric sulfosuccinic diesters, Aerosol-OT homologues", J CHEM S P2, (11), 2001, pp. 2179-2188

Abstract

The synthesis and surfactant behaviour of two series of sulfosuccinic diesters, AOT-related compounds, are described [Aerosol-OT 1: sodium bis(2-ethylhexyl) sulfosuccinate]. The first family contains unsaturated, racemic or enantiopure, 2-ethylhex(en)yl chains with various positions of the double bond. These compounds are readily prepared from the corresponding unsaturated alcohol by the standard two-step procedure: their critical micelle concentrations are higher than those of normal AOT and depend on the position of the double bond. The second series consists of nonsymmetric homologues withtwo different substituents: various unsymmetrical sulfosuccinic diesters with two enantiopure saturated or unsaturated chains of opposite configuration. or with two different substituents like methyl and 2-ethylhexyl, hydrogenated and deuterated chains as well as saturated and unsaturated chains are described. These unsymmetrical sulfosuccinic diesters are readily obtained in a three-step synthetic procedure involving the regiospecific sulfonation of maleic monoester in aqueous medium. The structure of the sodium 4-alkyl-2-sulfosuccinic acid key intermediate is unambiguously resolved by NMR comparative analysis of the hydrogenated and deuterated derivatives. The surfactant behaviour of some unsymmetrical compounds is studied.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 16:02:02