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|Title:||Hydrogen bonding and miscibility behavior in poly[ethylene-co(acrylic acid)] and poly(N-vinylpyrrolidone) mixtures|
|Abstract:||The miscibility behavior promoted by hydrogen bonding interactions in mixtures of poly(N-vinylpyrrolidone) (PNVP) and a copolymer of ethylene/acrylic acid (PEAA-20) is studied by differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA) and infrared spectroscopy. Mixtures become immiscible when hydrogen-bonding interactions weaken. DMTA and dielectric relaxation spectroscopy reveal a sub-vitreous transition in the PVNP at about 52°C. This transition superimposes with the glass transition of PNVP-rich blends. © Wiley-VCH Verlag GmbH, 2001.|
|Appears in Collections:||Producción científica UdeG (prueba)|
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