Polyelectrolyte adsorption and stabilization of silica-suspensions

被引：0
|
作者：
Bauer, D [1 ]
Killmann, E [1 ]
机构：
[1] Tech Univ Munich, Inst Tech Chem, Lehrstuhl Makromol Stoffe, D-85747 Garching, Germany
来源：
6TH DRESDEN POLYMER DISCUSSION - SURFACE MODIFICATION | 1998年 / 126卷
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D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The adsorption of cationic polyelectrolytes on colloidal silica-particles is investigated. The polyelectrolytes poly(diallyl-dimethyl-ammoniumchloride) PDADMAC of different molar mass have been used. The adsorbed amount is influenced by the ionic strength and pH of the suspension and the molar mass of the macromolecule. The adsorption determines the zetapotential of the covered particles. The electrostatic interaction between the particles as well as the structure of the adsorbed polyelectrolytes play an important role in the stabilization and flocculation behaviour of the polyelectrolyte covered suspensions.
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页码：173 / 188
页数：16
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