Numéro
J. Phys. IV France
Volume 03, Numéro C4, Septembre 1993
4th International Workshop on Positron and Positronium Chemistry
Page(s) C4-135 - C4-137
DOI http://dx.doi.org/10.1051/jp4:1993417
4th International Workshop on Positron and Positronium Chemistry

J. Phys. IV France 03 (1993) C4-135-C4-137

DOI: 10.1051/jp4:1993417

The role of hydrophobic interactions in structure of aqueous nonelectrolyte solutions from positron annihilation measurements

K. JERIE1, A. BARANOWSKI1, J. GLINSKI2 and K. ORZECHOWSKI2

1  Institute of Experimental Physics, Wroclaw University, 50-205 Wroclaw, Poland
2  Institute of Chemistry, Wroclaw University, 50-205 Wroclaw, Poland


Abstract
The experimental results of positron annihilation and sound velocity experiments in aqueous solutions of formamide and ethyl alcohol are compared. The concentration dependences of annihilation parameters and of adiabatic compressibility differ significantly for these systems, indicating hydrophobic hydration occuring in the case of water-alcohol system and hydrophilic one in the case of water-formamide.



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