Dynamics of solvation and rotational relaxation in neutral Brij 35 and Brij 58 micelles

被引：27

作者：

Chakrabarty, D ^{[1
]}

Hazra, P ^{[1
]}

Chakraborty, A ^{[1
]}

Sarkar, N ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 392卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.05.084

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 480 (C-480) and Coumarin 490 (C-490) in neutral polyoxyethylene (23) lauryl ether (Brij 35) and polyoxyethylene (20) cetyl ether (Brij 58) micelles is severely retarded compared to pure water. The solvation dynamics is bi-exponential in all these micelles. The fast component of the solvation dynamics arises due to the water molecules present in the palisade layer of the micelles. The slow nanosecond component in solvation dynamics may arise due to the hydrogen bonding of water molecules with the polar part of micelles. The rotational relaxations in all these micelles are bimodal and comprising of a picosecond and a nanosecond component. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：340 / 347

页数：8

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