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Mass-fractal clustering and powder-law decay of cluster size in 1-propanol aqueous solution
http://hdl.handle.net/10191/26950
http://hdl.handle.net/10191/26950ef2e9bab-b545-41a9-b5f0-4dc7548ae9d8
名前 / ファイル | ライセンス | アクション |
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121_10_4716-4723.pdf (418.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-04-18 | |||||
タイトル | ||||||
タイトル | Mass-fractal clustering and powder-law decay of cluster size in 1-propanol aqueous solution | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Mass-fractal clustering and powder-law decay of cluster size in 1-propanol aqueous solution | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Misawa, M.
× Misawa, M.× Dairoku, I.× Honma, A.× Yamada, Y.× Sato, T.× Maruyama, K.× Mori, K.× Suzuki, S.× Otomo, T. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Mesoscale structure of 1-propanol aqueous solutions with propanol mole fraction xp ranging from 0.1 to 0.33 has been studied by means of small angle neutron scattering (SANS) and large-scale reverse Monte Carlo (RMC) technique. Analysis of the SANS intensities in terms of a fractal model shows that the fractal dimension df of mesoscale structure of the solution is about 1.8–1.9 for water-rich solution and about 1.5 for propanol-rich solution. Percolation analysis on the RMC results reveals that the water molecules and the propanol molecules cluster, respectively, as a mass fractal, the dimension dM of which is about 2.3–2.5 for both clusters for water-rich solution. Furthermore, the distribution of the cluster size is expressed by a simple power law with an exponent τ of about 1.35–1.5 for the propanol clusters and 1.05–1.2 for the water clusters. These results imply that the current solution is characterized by polydisperse mass fractals. In fact, a theoretical relation for polydisperse system of mass fractals, df=dM(2-τ), holds well in the current solution. The characteristic change in df from 1.8–1.9 to 1.5 described above is attributed to the crossover between the water-rich regime and the propanol-rich regime. Most of the water molecules and the propanol molecules are located on the interface between clusters, and the water molecules form thin layers of about 10 Å thick irrespective of 1-propanol content studied. | |||||
書誌情報 |
The journal of chemical physics en : The journal of chemical physics 巻 121, 号 10, p. 4716-4723, 発行日 2004-09 |
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出版者 | ||||||
出版者 | American Institute of Physics | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00219606 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00694991 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1063/1.1780931 | |||||
権利 | ||||||
権利情報 | Copyright(C) 2004 American Institute of Physics | |||||
著者版フラグ | ||||||
値 | publisher |