A Comparison of the dielectric, acoustic, NMR and viscoelastic relaxation properties of supercooled liquids cyclic carbonates

A.K.M. Masood, R.A. Pethrick, A.J. Barlow, M.G. Kim, R.P. Plowiec, D. Barraclough, J.A. Ladd
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引用次数: 2

Abstract

Dielectric, acoustic, NMR and viscoelastic relaxation measurements are reported on four cyclic carbonates. These liquids are known to possess anomalies in their physicochemical properties and two of the molecules exhibit a marked tendency to supercool. Relaxation times are reported for certain of the systems and comparison between techniques suggests that anisotropy of rotation appears at the same temperature as the observed anomalies.

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过冷液体环碳酸盐的介电、声学、核磁共振和粘弹性弛豫特性的比较
报道了四种环状碳酸盐的介电、声学、核磁共振和粘弹性弛豫测量。已知这些液体在物理化学性质上具有异常,其中两种分子表现出明显的过冷倾向。某些系统的弛豫时间被报道,技术之间的比较表明,旋转的各向异性出现在与观测到的异常相同的温度下。
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