Abstract
Two blends of polystyrene (PS, 240K molecular weight) and poly(vinylmethyl ether) (PVME, 171K) were compared, where one blend contained exclusively linear chains and the second contained cyclic PS. The cloud point measurements reported here show that over a broad composition range, the cycle-containing blend phase separates at temperatures -7°C above the cloud point temperatures of the exclusively linear blend. The critical composition does not shift appreciably in the cycle-containing blend. Analysis of the light intensity growth via Cahn-hilliard-Cook theory for early stage spinodal decomposition yielded an apparent mutual diffusion coefficient
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