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Title: Miscible blends of poly(vinyl phenyl ketone) and poly(4-vinyl phenol)
Author: Rodriguez-Castro, M.
Cesteros, L.C.
Katime, I.
Nuno-Donlucas, S.M.
Issue Date: 2006
Abstract: An analysis by differential scanning calorimetry, modulated differential scanning calorimetry, and Fourier transform infrared spectroscopy (FTIR) indicates that blends of poly(vinyl phenyl ketone) (PVPhK) and poly(4-vinyl phenol) (P4VPh) are miscible at ambient temperature. Miscibility, ascertained, is supported by the existence of a single glass transition for each composition of the PVPhK/P4VPh blends. The FTIR spectroscopy analysis demonstrates the formation of hydrogen bonds between carbonyl groups of PVPhK and hydroxyl groups of P4VPh. This specific interaction has a crucial role on the miscibility behavior of PVPhK/P4VPh blends. The evolution of the glass transition of the PVPhK, P4VPh, and its blends as a function of mixture composition shows negative deviations with to respect to the ideal mixing rule, and both Fox and Gordon-Taylor equations predict this behavior successfully. � 2006 Wiley Periodicals, Inc.
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