| Autor: |
D.M. Koenhen, C.A. Smolders |
| Přispěvatelé: |
University of Twente |
| Rok vydání: |
1977 |
| Předmět: |
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| Zdroj: |
Journal of Polymer Science: Polymer Chemistry Edition, 15(1), 155-166. Wiley-Liss Inc. |
| ISSN: |
0360-6376 |
| Popis: |
New experimental data have been collected on thermodynamic properties of solutions of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) in toluene. The Flory-Huggins interaction parameters g have been determined from light scattering measurements. These values are in agreement with values obtained by osmotic measurements at low concentrations and they allow the calculation of a melting point curve which fits the experimental melting points. No liquid-liquid phase separation can be calculated, as was concluded in a preceding paper. Spinodals could not be detected by light scattering or DSC-measurements. This also indicates that liquid-liquid phase separation does not occur. The phase separation on cooling of a PPO-toluene solution is thus believed to be a crystallization phenomenon. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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