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Title: Shear propagation in the terahertz dynamics of water-glycerol mixtures

Inelastic X-ray and neutron scattering techniques were jointly used to investigate the dynamics of water-glycerol mixtures at different concentrations and temperatures. It was observed that even relatively low concentrations of glycerol increase the damping of shear modes, as a consequence of the known ability of glycerol to disrupt the hydrogen bond network of water. A similar trend was observed when increasing the temperature, which suggests the presence of a locus in the concentration-temperature plane marking a crossover in the shear modulus.
Authors:
;  [1] ;  [2] ;  [3]
  1. Brookhaven National Laboratory, Photon Sciences Division, P.O. Box 5000, Upton, New York 11973 (United States)
  2. Sincrotrone Trieste, S.S. 14 km 163, 5 in AREA Science Park, 34012 Basovizza, Trieste (Italy)
  3. Advanced Photon Source, Argonne National Laboratory, Illinois 60439 (United States)
Publication Date:
OSTI Identifier:
22251447
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 139; Journal Issue: 18; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; GLYCEROL; MIXTURES; NEUTRON DIFFRACTION; SHEAR; WATER; X RADIATION