Evaluation of the equilibrium melting temperature and structure analysis of poly(ethylene oxide)/poly(methyl methacrylate) blends

摘要: By using optical microscopy, small-angle X-ray scattering and differential scanning calorimetry, the melting behaviour structural parameters of poly(ethylene oxide)/poly(methyl methacrylate) (PEO/PMMA) blends are determined. The equation that relates observed temperature, Tm′, to lamellar thickness is used for determination equilibrium Tm. In case a small depression in point observed. dependent on composition. interaction parameter obtained from degression, by Nishi Wang equation, was found be = −0,29. superstructural blend composition, under cooling sample preparation.