DONATOR ACCEPTOR BEHAVIOR OF AEROSIL IN SEVERAL ORGANIC LIQUIDS

被引：40
|
作者：
SPANGE, S [1 ]
SIMON, F [1 ]
HEUBLEIN, G [1 ]
JACOBASCH, HJ [1 ]
BORNER, M [1 ]
机构：
[1] INST POLYMER TECHNOL DRESDEN,O-8010 DRESDEN,GERMANY
来源：
COLLOID AND POLYMER SCIENCE | 1991年 / 269卷 / 02期
关键词：
ZETA-POTENTIAL; DONATOR ACCEPTOR BEHAVIOR; SURFACE INTERACTION; AEROSIL; SILICA;
D O I：
10.1007/BF00660308
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：
Aerosil is studied with regards to its acceptor behavior by means of electro-kinetic measurements and UV measurements in various organic liquids. Whereas the values of the general negativ zeta-potential only approximately correspond with the donor number of the liquids determined according to Gutmann, Marie and Gal, and Kravtzov et al., an excellent agreement between zeta-potential and the UV maximum of a dicyano-bis(1,10-phenanthrolin)-ferric [Fe(phen)2(CN)2] complex adsorbed at the solid-liquid interface was found. The fact that traces of water decrease the negative zeta-potential of aearosil in organic liquids is attributed to hydration of the aerosil surface.
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页码：173 / 178
页数：6
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