HYDRATION OF CYCLIC OLIGO(OXYETHYLENE) COMPOUNDS - ULTRASONIC VELOCITIES AND COMPRESSIBILITIES OF BINARY-SYSTEMS OF WATER WITH 12-CROWN-4, 15-CROWN-5, AND 18-CROWN-6

被引:33
作者
MIYAZAKI, Y
MATSUURA, H
机构
[1] HIROSHIMA UNIV, FAC SCI, DEPT CHEM, HIGASHISENDA MACHI, HIROSHIMA 730, JAPAN
[2] TOYO UNIV, FAC ENGN, KUJIRAI, KAWAGOE, SAITAMA 350, JAPAN
关键词
D O I
10.1246/bcsj.64.288
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Ultrasonic velocities of binary systems of water with 12-crown-4, 15-crown-5, and 18-crown-6 were measured and the adiabatic compressibilities were evaluated there-from. The results indicate that the most compacted hydration structure is formed at the mole ratio, approximately 2:1, of water to oxyethylene monomer unit and that the poly(oxyethylene) chain enhances structuring of the liquid water network.
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页码:288 / 290
页数:3
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