Solvation dynamics in a microemulsion in near-critical propane

被引：21

作者：

Bhattacharyya, K

Hara, K ^{[1
]}

Kometani, N

Uozu, Y

Kajimoto, O

机构：

[1] Kyoto Univ, Res Ctr Low Temp & Mat Sci, Sakyo Ku, Kyoto 6068502, Japan

[2] Kyoto Univ, Grad Sch Sci, Div Chem, Sakyo Ku, Kyoto 6068502, Japan

[3] Osaka City Univ, Fac Engn, Dept Appl Chem, Sumiyoshi Ku, Osaka 5588585, Japan

[4] Indian Assoc Cultivat Sci, Dept Phys Chem, Kolkata 700032, W Bengal, India

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 361卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(02)00923-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solvation dynamics of coumarin 343 (C343) is studied in AOT microemulsion in near-critical propane. It is observed that the solvation dynamics for a water pool of w(0) = 15 at 10 MPa pressure is described by bimodal behavior having a short component of 215 ps (47%) and a long component of 14 ns (53%). These components are similar to those detected for other probes in microemulsions at 0.1 MPa pressure. This indicates that the water pool is unaffected by pressure. The slow dynamics is ascribed to the restricted mobility of the water molecules confined within the pool. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：136 / 142

页数：7

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