Theoretical and experimental study of dissolution of inhomogeneities formed during spinodal decomposition in polymer mixtures

作者: A. Ziya Akcasu , I. Bahar , B. Erman , Y. Feng , C. C. Han

DOI: 10.1063/1.463737

关键词: PolystyrenePower lawSpinodal decompositionChemistryLight scatteringMixing (physics)Mode couplingPolymer chemistryThermodynamicsPolymerDissolution

摘要: Dissolution (mixing or melting) of inhomogeneities formed during spinodal decomposition in binary polymer mixtures is studied both experimentally and theoretically. The details the dissolution experiment with time‐resolved light scattering on polystyrene/poly(vinylmethylether) are presented. theoretical approach differs from that Langer, Bar‐on, Miller way fluctuations treated nonlinear theory, calculations arising chain connectivity (polymer effect). effect mode coupling nonlinearity relaxation rate discussed. It found theoretically wave number corresponding to peak intensity decreases time asymptotically following a t−0.5 power law.

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