Structure and dynamics of polymer colloid suspensions from dynamic light scattering and Brownian dynamics simulation

Härtl, W.; Versmold, H.; Wittig, U.; Linse, P.
November 1992
Journal of Chemical Physics;11/15/1992, Vol. 97 Issue 10, p7797
Academic Journal
A dilute suspension of ordered polymer colloid particles was investigated by static and dynamic light scattering. The obtained results are compared with a Brownian dynamic (BD) simulation of a model system consisting of hard spheres interacting with an exponentially screened Coulomb potential. The long time properties of the self- and collective correlation functions are investigated in detail. The obtained mean squared displacement is best described by a stretched exponential model and the collective long time diffusion from the BD simulation can only be approximately described by a kinetic theory based on a hard sphere system.


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