The miscibility and hydrogen-bonding interactions of carbon dioxide and epoxy propane copolymer to poly(propylene carbonate) (PPC)/poly(p-vinylphenol) (PVPh) blends were investigated with differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The single glass-transition temperature for each composition showed miscibility over the entire composition range. FTIR indicates the presence of strong hydrogen-bonding interassociation between the hydroxyl groups of PVPh and the oxygen functional groups of PPC as a function of composition and temperature. XPS results testify to intermolecular hydrogen-bonding interactions between the oxygen atoms of carbon-oxygen single bonds and carbon-oxygen double bonds in carbonate groups of PPC and the hydroxyl groups of PVPh by the shift of C-1s peaks and the evolution of three novel O-1s peaks in the blends, which supports the suggestion from FTIR analyses. (C) 2002 Wiley Periodicals, Inc.
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FAC CIENCIAS QUIM SAN SEBASTIAN,DEPT CIENCIA & TECNOL POLIMEROS,POB 1072,E-20080 SAN SEBASTIAN,SPAINFAC CIENCIAS QUIM SAN SEBASTIAN,DEPT CIENCIA & TECNOL POLIMEROS,POB 1072,E-20080 SAN SEBASTIAN,SPAIN
POMPOSO, JA
ETXEBERRIA, A
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FAC CIENCIAS QUIM SAN SEBASTIAN,DEPT CIENCIA & TECNOL POLIMEROS,POB 1072,E-20080 SAN SEBASTIAN,SPAINFAC CIENCIAS QUIM SAN SEBASTIAN,DEPT CIENCIA & TECNOL POLIMEROS,POB 1072,E-20080 SAN SEBASTIAN,SPAIN
ETXEBERRIA, A
CORTAZAR, M
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FAC CIENCIAS QUIM SAN SEBASTIAN,DEPT CIENCIA & TECNOL POLIMEROS,POB 1072,E-20080 SAN SEBASTIAN,SPAINFAC CIENCIAS QUIM SAN SEBASTIAN,DEPT CIENCIA & TECNOL POLIMEROS,POB 1072,E-20080 SAN SEBASTIAN,SPAIN