SANS study of 3-methylpyridine -: heavy water mixtures

被引：17

作者：

Almásy, L

Cser, L

Jancsó, G

机构：

[1] Res Inst Solid State Phys & Opt, KFKI, H-1525 Budapest, Hungary

[2] Atom Energy Res Inst, KFKI, H-1525 Budapest, Hungary

来源：

PHYSICA B | 2000年 / 276卷

基金：

匈牙利科学研究基金会;

关键词：

phase transitions; small-angle neutron scattering; aggregates; correlation lengths;

D O I：

10.1016/S0921-4526(99)01658-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The mixture of 3-methylpyridine (3MP) and heavy water was studied in the concentration range of 0.25-4 mol% at 25 degrees C and 50 degrees C by small-angle neutron scattering. Measurements on the water-rich side of the closed-loop phase diagram showed that the aggregation of 3MP molecules sets in already at very small concentrations. It indicates the presence of effective attractive interactions between the solute molecules, which lead to phase separation at higher concentrations. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：446 / 447

页数：2

共 6 条

[1] Structural changes of the molecular complexes of pyridines with water and demixing phenomena in aqueous solutions [J].