STERICALLY STABILIZED COLLOIDAL PARTICLES AS MODEL HARD-SPHERES

被引：80

作者：

UNDERWOOD, SM ^{[1
]}

TAYLOR, JR ^{[1
]}

VANMEGEN, W ^{[1
]}

机构：

[1] ROYAL MELBOURNE INST TECHNOL,DEPT APPL PHYS,MELBOURNE,VIC 3000,AUSTRALIA

来源：

LANGMUIR | 1994年 / 10卷 / 10期

关键词：

D O I：

10.1021/la00022a030

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper we show that the same freezing-melting miscibility gap can be identified for suspensions of spherical polymer particles of radii 138-440 nn sterically stabilized in all cases by the same coating of a different polymer. Diffusion coefficients and sedimentation velocities of the colloidal fluid at the freezing concentration scale with that power of the particle radius expected for hard spheres. These observations demonstrate that these suspensions constitute a good experimental representation of the ideal hard-sphere system.

引用

页码：3550 / 3554

页数：5

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