Concentration Fluctuation and Salt-Induced Percolation in 1-Propanol Aqueous Solution : Condensed Matter: Structure, etc.
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概要
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Temperature dependent Kirkwood-Buff parameters G_<pp>, G_<ww> and G_<pw> have been evaluated for the 1-propanol-water solution (1:5 in mole ratio) from S_<cc> (0) obtained by small angle neutron scattering (SANS) experiments. Structural model for the concentration fluctuation for the solution at 25℃ has been constructed based on the value of G_<pp>. Characteristic feature of the SANS intensity and fractal nature of the concentration fluctuation can be explained qualitatively by the model structure. The volume fraction w of propanol-rich regions in the solution has been estimated as a function of temperature. Salt-induced phase separation phenomena observed on the current solution is discussed based on the temperature-dependent percolation theory.
- 社団法人日本物理学会の論文
- 2000-10-15
著者
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MISAWA Masakatsu
Department of Chemistry, Faculty of Science, Niigata University
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Misawa Masakatsu
Department Of Chemistry Faculty Of Science Niigata Universirt
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Yoshida Katsumi
Graduate School Of Science And Technology Niigata University
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