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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Härtl et al. (1992) studied this question.
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