These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Dielectric secondary relaxation of water in aqueous binary glass-formers.
    Author: Sjöström J, Mattsson J, Bergman R, Johansson E, Josefsson K, Svantesson D, Swenson J.
    Journal: Phys Chem Chem Phys; 2010 Sep 21; 12(35):10452-6. PubMed ID: 20601989.
    Abstract:
    Glassy aqueous binary mixtures generally exhibit a water induced dielectric relaxation. The characteristic time-scale of this relaxation follows an Arrhenius temperature dependence with a nearly universal activation energy. We here demonstrate for a series of model aqueous mixtures that the relaxation time also follows a remarkably general exponential dependence on the weight fraction of water. By comparison to literature data we show that this behaviour is shared by a wide range of molecular systems. Neither the detailed nature of the water molecules' glassy environment nor the details of the route of formation of the glassy state has a significant effect on the observed behaviour.
    [Abstract] [Full Text] [Related] [New Search]