Surfactant transfer across a water/oil interface: A diffusion/kinetics model for the interfacial tension evolution

Gassin, Pierre-Marie; Champory, Romain; Martin-Gassin, Gaëlle; Dufrêche, Jean‐François; Diat, Olivier

doi:10.1016/j.colsurfa.2013.08.053

Cited by 19 publications

(16 citation statements)

References 31 publications

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“…Interestingly, a recent article by Gassin et al (2013) considered the effects of the transfer of amphiphilic molecules across an O/W interface on the IFT between the two phases. They supported earlier findings (Liggieri et al, 1997) suggesting that the IFT of a system could decrease below the equilibrium value at least in the initial stages depending on the partition coefficient of the surfactant and the kinetic rate to achieve adsorption equilibrium.…”

Section: Effect Of Surfactant Positioningmentioning

confidence: 99%

Process optimisation of rotating membrane emulsification through the study of surfactant dispersions

Lloyd

Norton

Spyropoulos

2015

Journal of Food Engineering

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a b s t r a c tIn this study, a rotating membrane emulsification setup incorporating a 6.1 lm pore diameter Shirasu porous glass membrane was used to produce oil-in-water emulsions. The processing conditions varied between 0.2 and 1.5 bar for the transmembrane pressure and shear rates at the membrane surface between 0.6 s À1 and 104.6 s À1 were generated. All emulsions consisted of 10 vol.% of sunflower oil stabilised by one of four different surfactants (Tween 20, Brij 97, lecithin and sodium dodecyl sulphate) of either 0.1 wt.% or 1 wt.% concentration. A novel approach for emulsification processing was introduced which incorporates high hydrophilic-lypophilic balance, non-ionic surfactants within the dispersed phase rather than the continuous phase. A reduction in droplet size by at least a factor of 3 for the same formulation can be achieved without significant hindrance on disperse phase flux. This therefore suggests a possible strategy for further process optimisation.

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Section: Effect Of Surfactant Positioningmentioning

confidence: 99%

Process optimisation of rotating membrane emulsification through the study of surfactant dispersions

Lloyd

Norton

Spyropoulos

2015

Journal of Food Engineering

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“…Prior to ion return to the aqueous phase, a reorganization of interfacial layer needs to take hold, which makes this kinetically a slower process. [ 89 ] These processes are, however, still very poorly studied in ILs.…”

Section: Liquid–liquid Interface Between Two Different Fluids Separated By a Solid Nanoporementioning

confidence: 99%

From Water Solutions to Ionic Liquids with Solid State Nanopores as a Perspective to Study Transport and Translocation Phenomena

Marion

Vučemilović‐Alagić

Špadina

et al. 2021

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Solid state nanopores are single‐molecular devices governed by nanoscale physics with a broad potential for technological applications. However, the control of translocation speed in these systems is still limited. Ionic liquids are molten salts which are commonly used as alternate solvents enabling the regulation of the chemical and physical interactions on solid–liquid interfaces. While their combination can be challenging to the understanding of nanoscopic processes, there has been limited attempts on bringing these two together. While summarizing the state of the art and open questions in these fields, several major advances are presented with a perspective on the next steps in the investigations of ionic‐liquid filled nanopores, both from a theoretical and experimental standpoint. By analogy to aqueous solutions, it is argued that ionic liquids and nanopores can be combined to provide new nanofluidic functionalities, as well as to help resolve some of the pertinent problems in understanding transport phenomena in confined ionic liquids and providing better control of the speed of translocating analytes.

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“…Kinetic barrier and asymmetry in the transfer rate are due to the thin interfacial domain, also called the interphase, 23 which is schematized as a green line. 97,98 Again, in the dilute phase, complexation versus entropy balance results in low but measurable energy of transfer. 81,82 Moreover, as previously reported, 35 the domain where extraction is most efficient and optimum for liquid-liquid formulation in industrial plant feed is close to the third phase appearance point.…”

Section: Effect Of Temperaturementioning

confidence: 99%

A microfluidic study of synergic liquid–liquid extraction of rare earth elements

Maangar

Theisen

Penisson

et al. 2020

Phys. Chem. Chem. Phys.

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Surfactant transfer across a water/oil interface: A diffusion/kinetics model for the interfacial tension evolution

Cited by 19 publications

References 31 publications

Process optimisation of rotating membrane emulsification through the study of surfactant dispersions

Process optimisation of rotating membrane emulsification through the study of surfactant dispersions

From Water Solutions to Ionic Liquids with Solid State Nanopores as a Perspective to Study Transport and Translocation Phenomena

A microfluidic study of synergic liquid–liquid extraction of rare earth elements

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