Fakultät für Physik, Technische Universität Dortmund, 44221 Dortmund, Germany.
Karlsruher Institut für Technologie, 76128 Karlsruhe, Germany.
Phys Rev Lett. 2014 Mar 7;112(9):098301. doi: 10.1103/PhysRevLett.112.098301. Epub 2014 Mar 4.
Liquids composed of small-molecule monohydroxy alcohols are demonstrated to display rheological behavior typical for oligomeric chains. This observation was made possible by rheological experiments in which more than seven decades in frequency and more than five decades on the mechanical modulus scale are covered. The singly hydrogen-bonded monohydroxy alcohols were chosen because they display significant, but surprisingly poorly understood effects of intermolecular association. Based on the present shear study, one can apply theoretical concepts of polymer science to understand the anomalous physical behavior of a wide range of hydrogen-bonded liquids.
小分子一元羟醇组成的液体表现出典型的低聚物链流变行为。这一观察结果是通过流变学实验实现的，实验涵盖了超过七个频率 decade 和五个力学模量 decade。选择单氢键合的一元羟醇是因为它们表现出显著但令人惊讶的尚未被充分理解的分子间缔合效应。基于目前的剪切研究，可以应用聚合物科学的理论概念来理解广泛的氢键液体的异常物理行为。
