This title appears in the Scientific Report :
2003
Please use the identifier:
http://dx.doi.org/10.1088/0953-8984/15/1/356 in citations.
Viscoelasticity and diffusional properties of colloidal model dispersions
Viscoelasticity and diffusional properties of colloidal model dispersions
We examine linear viscoelastic, and translational and rotational diffusion properties of colloidal model dispersions. Theoretical results are discussed, in comparison with experiments, for monodisperse suspensions of charged and neutral colloidal spheres, and for binary dispersions of differently si...
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Personal Name(s): | Nägele, G. |
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Contributing Institute: |
Weiche Materie; IFF-WM |
Published in: | Journal of physics / Condensed matter, 15 (2003) S. s407 - s414 |
Imprint: |
Bristol
IOP Publ.
2003
|
Physical Description: |
s407 - s414 |
DOI: |
10.1088/0953-8984/15/1/356 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Journal of Physics: Condensed Matter
15 |
Subject (ZB): | |
Publikationsportal JuSER |
We examine linear viscoelastic, and translational and rotational diffusion properties of colloidal model dispersions. Theoretical results are discussed, in comparison with experiments, for monodisperse suspensions of charged and neutral colloidal spheres, and for binary dispersions of differently sized tracer and host particles. The theoretical methods employed comprise a mode-coupling scheme for Brownian particles, and a rooted cluster expansion scheme of tracer diffusion with two- and three-body hydrodynamic interactions included. We analyse in particular the validity of. various empirical generalized Stokes-Einstein-Debye (SED) relations between the (dynamic) shear viscosity and translational/rotational diffusion coefficients. Some of these generalized SED relations are basic to microrheological measurements aimed at characterizing the viscoelasticity of complex fluids on the basis of the diffusional properties of immersed tracer particles. |