Temperature and salt-induced micellization of dodecyltrimethylammonium chloride in aqueous solution: A thermodynamic study

Šarac, Bojan; Bešter‐Rogač, Marija

doi:10.1016/j.jcis.2009.06.027

Cited by 104 publications

(82 citation statements)

References 21 publications

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“…Under the experimental conditions of the current study, the cmc of 16-E2-16 was found to be 0.00128 mM. It is well established that the presence of electrolytes in the ionic surfactant solutions reduces their cmc's[9][10][11][12]. due to the charge screening effect, which leads to a reduction in the Debye length[13,14].…”

mentioning

confidence: 72%

Micellization and interfacial behavior of 16-E2-16 in presence of inorganic and organic salt counterions

Akram¹,

Yousuf²,

Sarwar³

et al. 2014

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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mentioning

confidence: 72%

Micellization and interfacial behavior of 16-E2-16 in presence of inorganic and organic salt counterions

Akram¹,

Yousuf²,

Sarwar³

et al. 2014

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…On the contrary, the size of metallacarborane aggregates slightly decreases with ionic strength, which disagrees with the results and predictions for classical anionic surfactants. [30][31][32][33] To explain this counterintuitive behavior, [34] the influence of additional salt on the counterion condensation and the aggregation number should be explored in detail in our future research.…”

Section: Introductionmentioning

confidence: 99%

Nonclassical Hydrophobic Effect in Micellization: Molecular Arrangement of Non‐Amphiphilic Structures

Uchman

Abrikosov

Lepšı́k

et al. 2017

Advcd Theory and Sims

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Micellization brought about by nonclassical hydrophobic effect invokes enthalpy as the driving force. Thus, the underlying molecular phenomena differ from the entropically dominated hydrophobic effect. In quest for a molecular-scale understanding, we report on the molecular arrangement of nonamphiphilic structures of an anionic boron cluster compound, COSAN. We synergistically combine experimental (NMR and calorimetry) and theoretical (molecular dynamics and quantum chemical calculations) approaches. The experimental data support the mechanism of closed association of COSAN, where the self-assembly is driven by the enthalpy contribution to the free energy. Molecular dynamics simulations in explicit solvent show that water molecules form a patchy network around COSAN molecules, giving rise to the strong hydrophobic self-association. In the second solvation shell, water forms a slightly hydrophilic "spot" close to the C-H segments of the cluster.

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“…Therefore, adding AOT induces the formation of aggregates at lower temperatures. Such a decrease in aggregation temperature and enthalpy of aggregation has also been found when nonionic surfactants are added to block copolymers [58,59]. On the other hand, the shoulder observed in the DSC curve of L121 aqueous solution also disappears upon addition of AOT, which suggest that the nature of the transition is different.…”

Section: Dsc Measurementsmentioning

confidence: 63%

Erratum to: Solution behavior of aqueous mixtures of low and high molecular weight hydrophobic amphiphiles

et al. 2010

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Mixtures of a hydrophobic triblock copolymer (L121, PEO 5 PPO 68 PEO 5 ) and a hydrophobic anionic surfactant (AOT, Sodium bis(2-ethylhexyl)sulfosuccinate), each alone forming turbid vesicular solutions in water, aggregate to produce a thermodynamically stable, transparent and isotropic solution. Mixed AOT/L121 aggregates could be confirmed by fluorescence, surface tension, differential scanning calorimetry (DSC) and isothermal titration calorimetry (ITC). In an isotropic region, where mixed aggregates are formed, there is a synergistic interaction between monomers of AOT and L121 in the mixture. In addition, Small Angle Neutron Scattering (SANS) experiments provided evidence that mixed aggregates have the shape of either spheres (with a certain polydispersity) or very short ellipsoids (axial ratio below 2), confirming a transition from giant multilamellar vesicles to small aggregates upon mixing the two hydrophobic amphiphiles. Upon dilution, the morphology changes to disk-like. From an examination of the results of all the methods the peculiar behavior of the mixed AOT/L121 system is explained.The online version of the original article can be found at http://dx.doi.

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Temperature and salt-induced micellization of dodecyltrimethylammonium chloride in aqueous solution: A thermodynamic study

Cited by 104 publications

References 21 publications

Micellization and interfacial behavior of 16-E2-16 in presence of inorganic and organic salt counterions

Micellization and interfacial behavior of 16-E2-16 in presence of inorganic and organic salt counterions

Nonclassical Hydrophobic Effect in Micellization: Molecular Arrangement of Non‐Amphiphilic Structures

Erratum to: Solution behavior of aqueous mixtures of low and high molecular weight hydrophobic amphiphiles

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