Conformational changes in polymers adsorbed on titanium and iron oxides

被引：26

作者：

Bulychev, N. A. ^{[1
]}

机构：

[1] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 119991, Russia

来源：

INORGANIC MATERIALS | 2010年 / 46卷 / 04期

关键词：

ULTRASONIC TREATMENT; ADSORPTION; COPOLYMERS; PARTICLES; PIGMENTS;

D O I：

10.1134/S0020168510040138

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of high-energy mechanical processing on the adsorption behavior of the hydrophilic polymer ethyl hydroxyethyl cellulose (EHEC) on the surface of the inorganic pigments TiO(2) and Fe(2)O(3) has been studied by IR spectroscopy. High-energy processing of aqueous disperse systems of TiO(2) and Fe(2)O(3) activates the surface of the inorganic oxides and promotes polymer adsorption. We present the first evidence that the interaction of EHEC with oxide surfaces is accompanied by conformational changes in the adsorbed EHEC molecules. The conformational transitions depend on the lattice parameters of the inorganic oxides and lead to the formation of special adsorbed solvated EHEC layers, which determine the sedimentation stability of the disperse system.

引用

页码：393 / 398

页数：6