Structure and growth of bis(2-ethylhexyl) sulfosuccinate micelles in aqueous solutions

Sheu, Eric Y.; Chen, Sow Hsin; Huang, John S.

doi:10.1021/j100296a039

Cited by 92 publications

(87 citation statements)

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“…In Table 7 the chain lengths (lmax) of the alkanoates are calculated using the Tanford equation (equation 10) [29]. When averaged with the fitted radius of AOT of 9.1 Å [19] the yielding values (lmax-av) are in good agreement to those reported in Table 6, especially considering that the calculated tail length of AOT is 12.57 Å [30]. …”

Section: Aot*supporting

confidence: 54%

Effects of small ionic amphiphilic additives on reverse microemulsion morphology

Hatzopoulos

James

Rogers

et al. 2014

Journal of Colloid and Interface Science

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms Effects of small ionic amphiphilic additives on reverse microemulsion morphology Research Highlights Cylindrical morphologies of reverse microemulsions induced by small molecule hydrotropes.  Ellipsoidal droplets of high aspect ratio in reverse AOT microemulsions are induced by short chain alkanoate additives.  A cylinder to sphere transition in reverse AOT microemulsions is seen with increasing water content. . Microemulsion domain structures were investigated by small-angle neutron scattering (SANS), and these data were fitted by structural models to yield information on the shapes (spheres, ellipsoids or cylinders) and sizes of the nanodroplets. Effects of small ionic amphiphilic additives on reverse microemulsion morphology FindingsUnder the conditions of study hydrotrope chemical structure has a significant effect on microemulsion structure: sodium cyclohexanoate does not induce the formation of cylindrical/ellipsoidal nanodroplets, whereas the aromatic analogue sodium benzoate does. Furthermore, the short chain sodium hexanoate does not cause anisotropic microemulsions, but the more hydrophobic longer chain heptanoate and octanoate analogues do induce sphere-to-ellipsoid transitions. This study shows that underlying microemulsion structures can be tuned by hydrotropes, and that the strength of the effect can be identified with hydrotrope hydrophobicity in terms of the bulk aqueous phase cac.

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Section: Aot*supporting

confidence: 54%

Effects of small ionic amphiphilic additives on reverse microemulsion morphology

Hatzopoulos

James

Rogers

et al. 2014

Journal of Colloid and Interface Science

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“…For an AOT molecule, we can take fl =0.106 because of its molecular geometry (Sheu, Chen& Huang, 1987 ['(r).…”

Section: Modelsmentioning

confidence: 99%

Simulation of bicontinuous microemulsions: comparison of simulated real-space microstructures with scattering experiments

Chen¹,

Chang²,

Strey³

1991

J Appl Cryst

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The ubiquitous scattering peak found in all disordered bicontinuous microemulsions, when scattering measurements are made with an oil-water contrast, is attributed to the existence of two length scales in the system. The two lengths, d and (, appear explicitly in the Debye correlation function for the microemulsion in a phenomenological model having a universal ratio, also implies that the scattering function I(Q) satisfies a certain scaling relation. Our SANS data are used to support the validity of such a scaling relation.

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“…where £ s (611 Å 3 ) is the molecular volume of AOT (44). The interfacial concentration of AOT is calculated from the bulk surfactant concentration, accounting for the solubility of AOT in both the brine and the decane.…”

Section: Introductionmentioning

confidence: 99%

Interactions in Colloidal Mixtures: Partial Structure Factors in Mixtures of Colloidal Silica and an Anionic Oil-in-Water Microemulsion

Kline

Kaler

1998

Journal of Colloid and Interface Science

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Structure and growth of bis(2-ethylhexyl) sulfosuccinate micelles in aqueous solutions

Cited by 92 publications

References 0 publications

Effects of small ionic amphiphilic additives on reverse microemulsion morphology

Effects of small ionic amphiphilic additives on reverse microemulsion morphology

Simulation of bicontinuous microemulsions: comparison of simulated real-space microstructures with scattering experiments

Interactions in Colloidal Mixtures: Partial Structure Factors in Mixtures of Colloidal Silica and an Anionic Oil-in-Water Microemulsion

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