Adsorption at air-water and oil-water interfaces and self-assembly in aqueous solution of ethoxylated polysorbate nonionic surfactants

The Tween nonionic surfactants are ethoxylated sorbitan esters, which have 20 ethylene oxide groups attached to the sorbitan headgroup and a single alkyl chain, lauryl, palmityl, stearyl, or oleyl. They are an important class of surfactants that are extensively used in emulsion and foam stabilizatio...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 31(2015), 10 vom: 17. März, Seite 3003-11
1. Verfasser: Penfold, Jeffrey (VerfasserIn)
Weitere Verfasser: Thomas, Robert K, Li, Peixun X, Petkov, Jordan T, Tucker, Ian, Webster, John R P, Terry, Ann E
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Micelles Oils Polysorbates Solutions Surface-Active Agents Water 059QF0KO0R
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520 |a The Tween nonionic surfactants are ethoxylated sorbitan esters, which have 20 ethylene oxide groups attached to the sorbitan headgroup and a single alkyl chain, lauryl, palmityl, stearyl, or oleyl. They are an important class of surfactants that are extensively used in emulsion and foam stabilization and in applications associated with foods, cosmetics and pharmaceuticals. A range of ethoxylated polysorbate surfactants, with differing degrees of ethoxylation from 3 to 50 ethylene oxide groups, have been synthesized and characterized by neutron reflection, small-angle neutron scattering, and surface tension. In conjunction with different alkyl chain groups, this provides the opportunity to modify their surface properties, their self-assembly in solution, and their interaction with macromolecules, such as proteins. Adsorption at the air-water and oil-water interfaces and solution self-assembly of the range of ethoxylated polysorbate surfactants synthesized are presented and discussed 
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700 1 |a Thomas, Robert K  |e verfasserin  |4 aut 
700 1 |a Li, Peixun X  |e verfasserin  |4 aut 
700 1 |a Petkov, Jordan T  |e verfasserin  |4 aut 
700 1 |a Tucker, Ian  |e verfasserin  |4 aut 
700 1 |a Webster, John R P  |e verfasserin  |4 aut 
700 1 |a Terry, Ann E  |e verfasserin  |4 aut 
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