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Author Paluch, M. ♦ Masiewicz, E. ♦ Grzybowski, A. ♦ Pawlus, S. ♦ Wojnarowska, Z. ♦ Pionteck, J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ DENSITY ♦ HYDROGEN ♦ LIQUIDS ♦ MOLECULAR DYNAMICS METHOD ♦ MOLTEN SALTS ♦ POLYMERS ♦ VAN DER WAALS FORCES
Abstract The fragility parameter has been acknowledged as one of the most important characteristics of glass-forming liquids. We show that the mystery of the dramatic change in molecular dynamics of systems approaching the glass transition can be better understood by the high pressure study of fragility parameters defined in different thermodynamic conditions. We formulate and experimentally confirm a few rules obeyed by the fragility parameters, which are also rationalized by the density scaling law and its modification suggested for associated liquids. In this way, we successfully explore and gain a new insight into the pressure effect on molecular dynamics of van der Waals liquids, polymer melts, ionic liquids, and hydrogen-bonded systems near the glass transition.
ISSN 00219606
Educational Use Research
Learning Resource Type Article
Publisher Date 2014-10-07
Publisher Place United States
Journal Journal of Chemical Physics
Volume Number 141
Issue Number 13


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