POLY-ELECTROLYTE INTERACTIONS AT THE HEMATITE WATER INTERFACE .2.

被引：6

作者：

RAMACHANDRAN, R ^{[1
]}

SOMASUNDARAN, P ^{[1
]}

机构：

[1] COLUMBIA UNIV,SCH ENGN & APPL SCI,NEW YORK,NY 10027

来源：

COLLOIDS AND SURFACES | 1988年 / 32卷 / 3-4期

关键词：

IRON COMPOUNDS - Surfaces - WATER - Surfaces;

D O I：

10.1016/0166-6622(88)80026-X

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：

Displacement of adsorbed polyelectrolytes at the hematite/water interface is investigated as a function of molecular weight, ionic strength and order of addition using monodisperse polystyrenesulfonate (PSS) (MW 4600 and 1,200,000) as the polymer. At low ionic strength, 0. 001 kmol m** minus **3, adsorption isotherms of single polymer was independent of molecular weight. At 1 kmol m** minus **3 NaCl, adsorption increased significantly with molecular weight. Polydispersity effects were studied by examining adsorption of premixed monodisperse samples of two molecular weights, 4600 and 1,200,000, on hematite, and analyzing using size exclusion chromatography.

引用

页码：319 / 329

页数：11