Interaction of Colloidal Particles with Macromolecules:   The RISM Integral Equation Theory

Khalatur, Pavel G.; Zherenkova, L. V.; Khokhlov, Alexei R.

doi:10.1051/jp2:1997145

Cited by 21 publications

(18 citation statements)

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“…3 may be compared with the Fig. 5 of Khalatur et al [13] who observe the same effect. Note that at large values of q the polymer has no effect, h S is dominated at large q by the hard-sphere interactions.…”

Section: Scaling Theory For Spheres In a Semidilute Polymer Solutionmentioning

confidence: 52%

Scattering from small colloidal particles in a semidilute polymer solution

Sear

1998

Eur. Phys. J. B

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The correlations between the segments of a semidilute polymer solution are found to induce correlations in the positions of small particles added to the solution. Small means a diameter much less than the polymer's correlation length. In the presence of polymer the particles behave as if they attracted each other. It is shown how the polymer's correlation length may be determined from a scattering experiment performed on the spheres

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Section: Scaling Theory For Spheres In a Semidilute Polymer Solutionmentioning

confidence: 52%

Scattering from small colloidal particles in a semidilute polymer solution

Sear

1998

Eur. Phys. J. B

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“…This can be achieved using the well-established techniques of liquid-state theory 8 . The PRISM ("polymer reference interaction site model") theory, originally designed for the study of polymer solutions and melts 9 , has been recently extended to investigate various charged and uncharged colloidal systems 10,11 , as well as mixtures of neutral spherical colloids and polymers [12][13][14][15] and like-charged spherical colloids and polyelectrolytes 16 . This paper focuses on the structure and stability of dispersions of charged colloidal particles in the presence of oppositely charged polyions, which play the role of mesoscopic counterions.…”

Section: Introductionmentioning

confidence: 99%

Colloid aggregation induced by oppositely charged polyions

Harnau

Hansen

2002

The Journal of Chemical Physics

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The "polymer reference interaction site model" (PRISM) integral equation formalism is used to determine the pair structure of binary colloidal dispersions involving large and small polyions of opposite charge. Two examples of such bidisperse suspensions are considered in detail, namely mixtures of charged spherical colloids and oppositely charged polyelectrolyte chains, and binary mixtures of oppositely charged large and small clay platelets. In both cases clear evidence is found for aggregation of the larger particles induced by the polyionic counterions, signalled by a strong enhancement of long wavelength concentration fluctuations.Comment: 8 pages, 7 Postscript figure

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“…A quantitative theory of the binary systems, such as homopolymer/nanometer-scale monodispersed particles, was suggested recently in the limits of statistical physics. [57][58][59][60] The effect of a solvent was taken into consideration by variation of the polymer/particle interaction energy. This theory has comprehended practically all phenomena found in the polymer/small particles mixtures.…”

Section: Inter-and Intramolecular Polycomplexes In Polydispersed Collmentioning

confidence: 99%

Inter- And Intramolecular Polycomplexes in Polydispersed Colloidal Systems

Zheltonozhskaya

Permyakova

Eremenko

2009

Hydrogen-Bonded Interpolymer Complexes

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Problems of stability in polymer-colloidal systems are discussed from the viewpoints of classical colloidal chemistry, macromolecular chemistry and statistical physics. The special situation in the systems containing polydispersed colloidal particles is highlighted. The behavior of the InterPC (PSMA+PEO) composed of poly(styrene-altmaleic acid) and poly(ethylene oxide), and also of the IntraPC (PVAPAAm) formed in the poly(vinyl alcohol)-graft-polyacrylamide copolymers in mono-and polydispersed silica/water suspensions is considered in order to explain the fact of a principally higher flocculating capability of polycomplexes as compared with individual polymer components. The approaches of colloidal and macromolecular chemistry are used in conjunction in these studies. The development of complicated non-equilibrium competitive processes in the ternary systems containing chemically complementary polymer components and polydispersed colloidal particles is demonstrated. The existence of an additional thermodynamic factor of attraction between large micrometer-scale particles covered by adsorption layers of polycomplexes and between triple polymer-colloidal complexes formed by both polymer components and nanoparticles is shown.

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Interaction of Colloidal Particles with Macromolecules: The RISM Integral Equation Theory

Cited by 21 publications

References 0 publications

Scattering from small colloidal particles in a semidilute polymer solution

Scattering from small colloidal particles in a semidilute polymer solution

Colloid aggregation induced by oppositely charged polyions

Inter- And Intramolecular Polycomplexes in Polydispersed Colloidal Systems

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