Static correlations in macro-ionic suspensions: Analytic and numerical results in a hypernetted-chain<i>–</i>mean-spherical approximation

Khan, Sheema; Morton, Thomas L.; Ronis, David

doi:10.1103/physreva.35.4295

Cited by 71 publications

(42 citation statements)

References 40 publications

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“…The latter is defined by the molar concentration of SDS monomers, taken to be equal to the cmc, the added salt (buffer solution), and the ionized Na + from the micelles (29). The partial structure factors related to micelle-counterion and counterion-counterion correlations can also be evaluated from the SAXS curves (30,31). Nevertheless, this is particularly important for micelles with heavy counterions, where their contribution must not be ignored (31), but this is not the case here.…”

Section: Methodsmentioning

confidence: 99%

Chlorpromazine and Sodium Dodecyl Sulfate Mixed Micelles Investigated by Small Angle X-Ray Scattering

Caetano¹,

Gelamo²,

Tabak³

et al. 2002

Journal of Colloid and Interface Science

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Section: Methodsmentioning

confidence: 99%

Chlorpromazine and Sodium Dodecyl Sulfate Mixed Micelles Investigated by Small Angle X-Ray Scattering

Caetano¹,

Gelamo²,

Tabak³

et al. 2002

Journal of Colloid and Interface Science

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“…To obtain an equivalent model potential for electrostatically stabilized ferrofluids, V ster is replaced (see e. g. [16]) by the interaction potential Another important model potential for describing dipolar particles is the Stockmayer potential in which the short-range interaction is given by the Lennard-Jones function for the van der Waals interaction of point-like particles…”

Section: Short-range Potentialsmentioning

confidence: 99%

Magnetic properties of colloidal suspensions of interacting magnetic particles

2004

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We review equilibrium thermodynamic properties of systems of magnetic particles like ferrofluids in which dipolar interactions play an important role. The review is focussed on two subjects: (i) the magnetization with the initial magnetic susceptibility as a special case and (ii) the phase transition behavior. Here the condensation ("gas/liquid") transition in the subsystem of the suspended particles is treated as well as the isotropic/ferromagnetic transition to a state with spontaneously generated long-range magnetic order.

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“…The structure and thermodynamics of highly asymmetric electrolytes has been investigated by various approximate integral equation approximations based on the Ornstein-Zernicke equation. [1][2][3][4][5][6][7] Computer simulations have also been successfully applied to systems with the asymmetry in size about 10:1 and in charge 20:1. 8,9 The conclusion is that the hypernetted-chain integral ͑HNC͒ equation, though often superior to other theories in predicting properties of Coulombic systems, becomes less reliable if the asymmetry in size and charge increases.…”

Section: Introductionmentioning

confidence: 99%

Multidensity integral equation theory for highly asymmetric electrolyte solutions

Kalyuzhnyi

Vlachy

Holovko

et al. 1995

The Journal of Chemical Physics

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Integral equation theory for uncharged liquids: The LennardJones fluid and the bridge functionAccurate solution of a highly asymmetric electrolyte: Molecular dynamics simulation and integral equation J. Chem. Phys. 93, 1376 (1990); 10.1063/1.459148 Integral equation theory of the structure and thermodynamics of polymer blends Integral equation theory based on a recently developed multidensity formalism ͓Mol. Phys. 78, 1247 ͑1993͔͒ is proposed to study highly asymmetric electrolyte ͑polyelectrolyte͒ solutions. The system studied consists of large and highly charged polyions and small counterions having one or two elementary charges. The potential energy of interaction between counterions and polyions is separated into two parts, a strongly attractive part responsible for the association and a nonassociative part. Due to the strong asymmetry in size we can treat each counterion as bondable to a limited number of polyions n, while each polyion can bond arbitrary number of counterions. In our cluster expansion appropriate to the problem the diagrams appearing in the activity expansion of the one-point counterion density are classified in terms of the number of associating bonds incident upon the labeled white counterion circle. The corresponding diagrams for the one-point polyion density are classified in the usual way. A generalized version of the Ornstein-Zernike equation, which involves nϩ1 counterion densities and one polyion density, together with hypernetted-chain-like ͑HNC͒ closure conditions are derived. The simplest two-density version of the theory yields very good agreement with new and existing computer simulations for both thermodynamical and structural properties of these systems. This good agreement extends into the region of parameter space where the ordinary HNC approximation does not have a convergent solution.

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Static correlations in macro-ionic suspensions: Analytic and numerical results in a hypernetted-chain–mean-spherical approximation

Cited by 71 publications

References 40 publications

Chlorpromazine and Sodium Dodecyl Sulfate Mixed Micelles Investigated by Small Angle X-Ray Scattering

Chlorpromazine and Sodium Dodecyl Sulfate Mixed Micelles Investigated by Small Angle X-Ray Scattering

Magnetic properties of colloidal suspensions of interacting magnetic particles

Multidensity integral equation theory for highly asymmetric electrolyte solutions

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