ELECTROKINETICS OF STRUCTURED INTERFACES WITH POLYMER DEPLETION - A THEORETICAL-STUDY

被引：36

作者：

DONATH, E ^{[1
]}

KUZMIN, P ^{[1
]}

KRABI, A ^{[1
]}

VOIGT, A ^{[1
]}

机构：

[1] MPI COLLOID & INTERFACE RES,BERLIN ALDERSHOF,GERMANY

来源：

COLLOID AND POLYMER SCIENCE | 1993年 / 271卷 / 10期

关键词：

POLYMER DEPLETION; ELECTROPHORESIS; VISCOSITY; CHARGED SURFACE LAYER; STRUCTURED INTERFACES;

D O I：

10.1007/BF00654852

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 effect of a depletion layer formed in an aqueous solution of nonadsorbing water soluble polymers on the electrophoretic mobility of a particle coated with a charged layer (hairly layer model) was theoretically studied. A final equation is given which describes the mobility as a function of the depletion layer parameters. It was shown that depletion led to an increase of the mobility due to the reduced viscosity in the depletion layer. In most cases the effect of the spatial distribution of charges worked in the opposite direction. The depletion layer effect depended on ionic strength.

引用

页码：930 / 939

页数：10

共 33 条

[1] EXCLUSION OF POLY(ETHYLENE GLYCOL) FROM LIPOSOME SURFACES [J].