Oscillatory shear and high-pressure dielectric study of 5-methyl-3-heptanol
| Autor: | Bo Jakobsen, Catalin Gainaru, Marian Paluch, Sebastian Pawlus, Roland Böhmer, M. Wikarek, Manfred Wilhelm, Roxana Figuli, Jeppe C. Dyre, Tina Hecksher |
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| Rok vydání: | 2014 |
| Předmět: |
Polymers and Plastics
Hydrogen bond Supramolecular chemistry Thermodynamics Dielectric 3-Heptanol Dielectric spectroscopy symbols.namesake chemistry.chemical_compound Colloid and Surface Chemistry chemistry Rheology Materials Chemistry symbols Organic chemistry Physical and Theoretical Chemistry Debye Ambient pressure |
| Zdroj: | Colloid and Polymer Science. 292:1913-1921 |
| ISSN: | 1435-1536 0303-402X |
| DOI: | 10.1007/s00396-014-3274-0 |
| Popis: | The monohydroxy alcohol 5-methyl-3-heptanol is studied using rheology at ambient pressure and using dielectric spectroscopy at elevated pressures up to 1.03 GPa. Both experimental techniques reveal that the relaxational behavior of this liquid is intermediate between those that show a large Debye process, such as 2-ethyl-1-hexanol, or a small Debye-like feature, such as 4-methyl-3-heptanol, with which comparisons are made. Various phenomenological approaches assigning a time scale for the rheological signature of supramolecular dynamics in monohydroxy alcohols are discussed. |
| Databáze: | OpenAIRE |
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