THE ADSORPTION OF POLYSTYRENE SULFONATE AND ETHOXYLATED NONIONIC SURFACTANTS AT CARBON BLACK-WATER INTERFACE

被引：21

作者：

BOSSOLETTI, L ^{[1
]}

RICCERI, R ^{[1
]}

GABRIELLI, G ^{[1
]}

机构：

[1] UNIV FLORENCE,DEPT CHEM,I-50121 FLORENCE,ITALY

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 1995年 / 16卷 / 3-4期

关键词：

D O I：

10.1080/01932699508943674

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：

The adsorption of a series of sodium polystyrene sulfonates with a narrow distribution of molecular weight and ethoxylated non-ionic surfactants (NP-12, NP-40, NP-100 and C(16)E(20)) was investigated at carbon black-water intel face. Adsorption isotherms of the Langmuir type were obtained for all the samples with negative adsorption free energies. The dependence of maximum of adsorption on molecular weight for PSSNa was used to obtain information on the macromolecular conformation at the interface; surface geometry effects on adsorption conformation were analyzed using a simplified fractal approach. PSSNa does not adopt a fiat conformation at the interface. Non-ionic surfactants (NP-12, NP-40, NP-100 and C(16)E(20)) are adsorbed at the interface with the EO chains in a coil conformation.

引用

页码：205 / 220

页数：16

共 35 条

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[2]

BOSSOLETTI L, 1994, THESIS FLORENCE

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