Journal
COLLOID AND POLYMER SCIENCE
Volume 292, Issue 8, Pages 1913-1921Publisher
SPRINGER
DOI: 10.1007/s00396-014-3274-0
Keywords
Rheology; Dielectric spectroscopy; Hydrogen bonds; Monohydroxy alcohols
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Funding
- Deutsche Forschungsgemeinschaft [BO1301/8-2]
- Polish National Science Centre [DEC-2012/05/B/ST4/00089]
- Danish National Research Foundation [DNRF61]
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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.
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