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  • 1 Naval Research Laboratory Washington DC 20375-5320 USA
  • | 2 Università di Pisa Dipartimento di Fisica Largo Bruno Pontecorvo 3 56127 Pisa Italy
  • | 3 CNR-INFM, PolyLab Largo Bruno Pontecorvo 3 56127 Pisa Italy
  • | 4 University of Calicut Department of Physics Calicut Kerala India
  • | 5 Tokai University Department of Physics Hiratsuka Kanagawa 259-1292 Japan
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Abstract  

In several current important problems in different areas of soft matter physics, controversy persists in interpreting the molecular dynamics observed by various spectroscopies including dielectric relaxation, light scattering, nuclear magnetic resonance, and neutron scattering. Outstanding examples include: (1) relaxation of water in aqueous mixtures, in molecular sieves and silica-gel nanopores, and in hydration shell of proteins; and (2) dynamics of each component in binary miscible polymer blends, in mixtures of an amorphous polymer with a small molecular glassformer, and in binary mixtures of two small molecular glassformers. We show the applications of calorimetry to these problems have enhanced our understanding of the dynamics and eliminated the controversies.