Oscillatory shear and high-pressure dielectric study of 5-methyl-3-heptanol
Oscillatory shear and high-pressure dielectric study of 5-methyl-3-heptanol
复制标题
DOI：
10.1007/s00396-014-3274-0
复制
发表时间：
2014-08-01
影响因子：
2.4
通讯作者：
Boehmer, R.
中科院分区：
文献类型：
--
作者：
Gainaru, C.;Wikarek, M.;Boehmer, R.
在常压下用流变学方法研究了一元醇5-甲基-3-庚醇，并在1.03 Gpa的高压下用介电光谱研究了它的性质。这两种实验技术都表明，这种液体的松弛行为介于那些表现出大的德拜过程的液体之间，如2-乙基-1-己醇，或小的类似德拜的特征，如4-甲基-3-庚醇，并与之进行了比较。讨论了为一元醇中超分子动力学的流变特征指定时间标度的各种唯象方法。
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.