Abstract
A light scattering study of the imbibition of carbon disulphide by poly(methyl methacrylate) latex particles is presented. It is shown that, by monitoring the time dependence of the scattered light intensity at a fixed angle, it is possible to determine penetrant diffusion coefficients and polymer segmental relaxation constants using a two stage model. It is found that the penetrant diffusion coefficients are typical of those for diffusion in glassy polymers and the segmental relaxation constants are independent of colloid particle size.
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