Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 1913-1921 |
| Number of pages | 9 |
| Journal | Colloid and Polymer Science |
| Volume | 292 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2014 |
| Externally published | Yes |
Funding
Support of this project by the Deutsche Forschungsgemeinschaft under Grant No. BO1301/8-2 is gratefully acknowledged. S. P. and M. P. acknowledge the financial support of the project by the Polish National Science Centre on the basis of decision No. DEC-2012/05/B/ST4/00089. The centre for viscous liquid dynamics “Glass and Time” is sponsored by the Danish National Research Foundation’s grant No. DNRF61.
Keywords
- Dielectric spectroscopy
- Hydrogen bonds
- Monohydroxy alcohols
- Rheology