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Scattering functions of core-shell-structured hard spheres with Schulz-distributed radii

Nayeri, M. ; Zackrisson, Malin ; Bergenholtz, Johan

In: The Journal of Physical Chemistry B, 2009, vol. 113, no. 24, p. 8296–8302

The scattering intensity of polydisperse systems of core−shell and layered hard spheres is considered. The Percus−Yevick solution for the partial structure factors is cast in a form suitable for numerical and analytical treatment. Closed-form, analytical expressions are given for an effective hard-sphere model of the scattering intensity of particles with an internal layered structure and a...

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Structure, dynamics, and rheology of concentrated dispersions of poly(ethylene glycol)-grafted colloids

Zackrisson, Malin ; Stradner, Anna ; Schurtenberger, Peter ; Bergenholtz, Johan

In: Physical Review E, 2006, vol. 73, p. 011408

A comprehensive experimental study of the dynamics and rheology of concentrated aqueous dispersions of poly(ethylene glycol)-grafted colloidal spheres is reported. The study focuses on good solvent conditions, for which excluded-volume interactions dominate. At high concentrations a glass transition is evident from the nondecaying component of the intensity correlation function measured with...

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