Small Angle Neutron Scattering (SANS) is used to study the kinetics of spinodal decomposition of a blend of polymethyl methacrylate (PMMA) with solution chlorinated polyethylene. The early stages of phase separation are quantified using Cahn‐Hilliard theory. Temperature and molecular weight dependences of interdiffusion are studied and it is shown that data can be better interpreted in terms of a wave vector dependent diffusional mobility M(q).
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Higgins et al. (1989) studied this question.
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