Structural investigation of water trapped in AOT/isooctane reverse micelles containing PEG by Fourier transform infrared spectroscopy

被引：4

作者：

Takeyama, T ^{[1
]}

Hayashi, Y ^{[1
]}

Talukder, M ^{[1
]}

Shimizu, N ^{[1
]}

Kawanishi, T ^{[1
]}

Ogino, C ^{[1
]}

机构：

[1] Kanazawa Univ, Grad Sch Nat Sci & Technol, Div Global Environm Sci & Engn, Kanazawa, Ishikawa 9208667, Japan

来源：

KAGAKU KOGAKU RONBUNSHU | 2003年 / 29卷 / 01期

关键词：

reverse micelle; PEG; 400; FT-IR; C; V; Lipase; hydration;

D O I：

10.1252/kakoronbunshu.29.124

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The structure of water entrapped in AOT/PEG 400 reverse micelles was investigated and compared with that of simple AOT reverse micelles by using Fourier transform infrared spectroscopy (FT-IR) to measure the stretching vibrations for O-H, carbonyl (C=O) and SO3- (S=O) bonds. The water in a reverse micelle consists of trapped water, bound water and free water. The fraction of free water in the water pool of reverse micelles containing PEG increases with the molar ratio of AOT to H2O, W-o more steeply than that of simple reverse micelles, and the structure of bound water is disrupted by the addition of PEG. The shift of the peak of the S = O bond and analysis of the C = O bond spectra indicates that the interaction of AOT molecules with water is decreased by hydrated PEG molecules at W-o > 6, which coincides with the results of O-H spectra.

引用

页码：124 / 130

页数：7

共 20 条

[1] Hydrogen-bond effects induced by alcohol on the structure and dynamics of ionic reverse micelles [J].