Viscosity study of tert-butyl alcohol aqueous solution by Brownian motion and gravimetric capillaries
Viscosity study of tert-butyl alcohol aqueous solution by Brownian motion and gravimetric capillaries
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DOI：
10.1016/j.molliq.2020.114170
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发表时间：
2020-12-01
影响因子：
6
通讯作者：
Judai, Ken
中科院分区：
文献类型：
--
作者：
Furukawa, Kazuki;Shibuta, Satoshi;Judai, Ken
分子间的相互作用影响液体的粘度，揭示了液体混合物的性质。水和叔丁醇的混合物表现出奇怪的粘度行为引起的浓度差异。用Ubbelohde粘度计和重量毛细管检测醇水溶液的宏观粘度。从1 μ m大小的聚苯乙烯珠的布朗运动的轨迹分析计算微观粘度。在较低浓度下观察到宏观和微观粘度之间的差异，表明溶液中的水波动对布朗运动至关重要。提出了一种利用布朗运动研究分子间相互作用的新方法。(C)2020年，任作家。由爱思唯尔公司出版
Molecular interactions influence the viscosity of liquids and reveal the nature of liquid mixtures. Water and tert-butyl alcohol mixtures exhibit strange viscosity behavior induced by concentration differences. The macroscopic viscosity of the aqueous alcohol solutions was examined with a Ubbelohde viscometer and a gravimetric capillary. The microscopic viscosity was calculated from the trajectory analysis of the Brownian motion of 1 mu m sized polystyrene beads. A discrepancy between the macroscopic and microscopic viscosity was observed specifically at lower concentrations, indicating that the water fluctuation in the solution is critical for the Brownian motion. A new method investigating molecular interactions using Brownian motions is demonstrated. (C) 2020 The Authors. Published by Elsevier B.V.