INVESTIGATION OF THE ADSORPTION CONFIGURATION OF POLY(ETHYLENE OXIDE) AND ITS COPOLYMERS WITH POLY(PROPYLENE OXIDE) ON MODEL POLYSTYRENE LATEX DISPERSIONS

被引：121

作者：

BAKER, JA ^{[1
]}

BERG, JC ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT CHEM ENGN BF-10,SEATTLE,WA 98195

来源：

LANGMUIR | 1988年 / 4卷 / 04期

关键词：

ADSORPTION - Analysis - COLLOID CHEMISTRY - Sedimentation - COLLOIDS - Rheology - COPOLYMERS - Dispersions - POLYSTYRENES - Latex;

D O I：

10.1021/la00082a042

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Theoretical prediction of the performance of adsorbed polymeric dispersion stabilizers requires information on the configuration of polymers at the solid/liquid interface. Parameters describing polymer adsorption configuration on aqueous polystyrene lattices are evaluated for representative linear homopolymers, block copolymers, and random copolymers of poly(ethylene oxide) and poly(propylene oxide). Effective hydrodynamic adsorption layer thicknesses, determined with photon correlation spectroscopy, are reported for the different polymer systems as a function of molar mass, concentration, and time from initial mixing. Specific adsorption isotherms are also determined. The data suggest that the polymers adsorb in the extended configuration, as loops and/or tails.

引用

页码：1055 / 1061

页数：7

共 34 条

[21] THERMODYNAMIC LIMIT TO FLOCCULATION STABILITY OF STERICALLY STABILIZED EMULSIONS [J].