Dynamic mechanical properties of plasticized poly(vinyl chloride). Linear free energy relationship in the poly(vinyl chloride)–ester system
| Autor: | J. L. Work, R. J. Hammond |
|---|---|
| Rok vydání: | 1968 |
| Předmět: |
chemistry.chemical_classification
Quantitative Biology::Biomolecules Materials science General Engineering Polymer Free-energy relationship Vinyl polymer Viscoelasticity Vinyl chloride Condensed Matter::Soft Condensed Matter chemistry.chemical_compound Chemical engineering chemistry Intramolecular force Polymer chemistry Polar Deformation (engineering) |
| Zdroj: | Journal of Polymer Science Part A-1: Polymer Chemistry. 6:73-83 |
| ISSN: | 1542-9350 0449-296X |
| Popis: | A considerable number of quantitative attempts have been made to predict the properties of solutions containing polar polymers and polar solvents. Thermodynamic approaches have generally failed to accurately describe these systems. This can be be ascribed to the difficulty in determining structural characteristics arising from the variety of secondary interactions present in these highly complex solutions. A linear free energy relationship has been used here to explore changes encountered in solutions of monofunctional esters in poly(vinyl chloride) undergoing mechanical deformation. This treatment appears valid only for the rubbery region of the viscoelastic spectrum of this polymer. The data indicate that the observed changes are a function of corresponding changes in polymer intramolecular interactions. |
| Databáze: | OpenAIRE |
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