Miscibility behavior and hydrogen bonding in blends of poly(vinyl phenyl ketone hydrogenated) and poly(2-ethyl-2-oxazoline)
| Autor: | Gabriel Luna-Bárcenas, M. Maldonado-Santoyo, Issa Katime, Isaac C. Sanchez, S. M. Nuño-Donlucas, Luis C. Cesteros, C. H. Ortiz-Estrada |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
Polymers and Plastics Hydrogen bond Infrared spectroscopy Condensed Matter Physics Miscibility chemistry.chemical_compound Differential scanning calorimetry chemistry Amide Polymer chemistry Materials Chemistry Thermomechanical analysis Polymer blend Physical and Theoretical Chemistry Glass transition |
| Zdroj: | Journal of Polymer Science Part B: Polymer Physics. 42:636-645 |
| ISSN: | 0887-6266 |
| DOI: | 10.1002/polb.10758 |
| Popis: | The miscibility behavior of poly(2-ethyl-2-oxazoline) (PEOx)/poly(vinyl phenyl ketone hydrogenated) (PVPhKH) blends was studied for the entire range of compositions. Differential scanning calorimetry and thermomechanical analysis measurements showed that all the PEOx/PVPhKH blends studied had a single glass-transition temperature (Tg). The natural tendency of PVPhKH to self-associate through hydrogen bonding was modified by the presence of PEOx. Partial IR spectra of these blends suggested that amide groups in PEOx and hydroxyl groups in PVPhKH interacted through hydrogen bonding. This physical interaction had a positive influence on the phase behavior of PEOx/PVPhKH blends. The Kwei equation for Tg as a function of the blend composition was satisfactorily used to describe the experimental data. Pure-component pressure–volume–temperature data were also reported for both PEOx and PVPhKH. © 2004 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 42: 636–645, 2004 |
| Databáze: | OpenAIRE |
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