Universal law of fractionation for slightly polydisperse systems

被引：71

作者：

Evans, RML ^{[1
]}

Fairhurst, DJ ^{[1
]}

Poon, WCK ^{[1
]}

机构：

[1] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.81.1326

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By perturbing about a general monodisperse system, we provide a complete description of two-phase equilibria in any system which is slightly polydisperse in some property (e.g., particle size, charge, etc.). We derive a universal law of fractionation which is corroborated by comprehensive experiments on a model colloid-polymer mixture. We furthermore predict that phase separation is an effective method of reducing polydispersity only for systems with a skewed distribution of the polydisperse property.

引用

页码：1326 / 1329

页数：4

共 19 条

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