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  • Title: Relaxation dynamics in glycerol-water mixtures. 2. Mesoscopic feature in water rich mixtures.
    Author: Hayashi Y, Puzenko A, Balin I, Ryabov YE, Feldman Y.
    Journal: J Phys Chem B; 2005 May 12; 109(18):9174-7. PubMed ID: 16852092.
    Abstract:
    The relaxation dynamics of water-rich glycerol-water mixtures is studied by broadband dielectric spectroscopy (BDS) at 173-323 K and differential scanning calorimetry (DSC) at 138-313 K. These data indicate the existence of the critical concentration of 40 mol % glycerol. In the studied temperature range for water-rich glycerol mixtures, the two states of water (ice and interfacial water) are observed in addition to water in the mesoscopic 40 mol % glycerol-water domains. The possible kinetics of water exchange between different water states is discussed in order to explain the mechanism of the broad melting behavior observed by DSC.
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