STUDY OF AGGREGATION IN WATER N-BUTOXYETHANOL SOLUTIONS BY DIELECTRIC-RELAXATION MEASUREMENTS

被引：21

作者：

FIORETTO, D ^{[1
]}

MARINI, A ^{[1
]}

ONORI, G ^{[1
]}

PALMIERI, L ^{[1
]}

SANTUCCI, A ^{[1
]}

SOCINO, G ^{[1
]}

VERDINI, L ^{[1
]}

机构：

[1] UNIV PERUGIA,DIPARTIMENTO FIS,VIA A PASCOLI,I-06100 PERUGIA,ITALY

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 196卷 / 06期

关键词：

D O I：

10.1016/0009-2614(92)85998-P

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：

The dielectric relaxation of water-n-butoxyethanol mixtures has been studied as a function of alcohol concentration in the water-rich region by means of a frequency domain coaxial technique in the range 10 MHz-3 GHz. Both the static dielectric constant and dielectric relaxation time exhibit an anomalous behaviour which further supports the existence of a butoxyethanol microphase above a critical concentration (mole fraction of cosolvent X* = 0.026 at T = 2-degrees-C). Experimental data have been analyzed in terms of a simple model in which water molecules are divided in two main groups, hydration and bulk water, mutually exchanging at a finite rate.

引用

页码：583 / 587

页数：5

共 18 条

[1] THE DIELECTRIC-RELAXATION TIME OF SUPERCOOLED WATER [J].