Interaction of Sodium Dodecyl Sulfate with Poly(ethyleneimine) in Bulk Solution and at the Air-Solution Interface

被引：7
|
作者：
Sakar-Deliormanli, Aylin [1 ]
机构：
[1] Izmir Inst Technol, Dept Chem Engn, TR-35430 Izmir, Turkey
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2010年 / 31卷 / 01期
关键词：
Micelles; poly (ethyleneimine); sodium dodecyl sulfate; surface tension; surfactant/polyelectrolyte mixtures; POLYELECTROLYTE/SURFACTANT MIXTURES; POLYETHYLENE IMINE; LIGHT-SCATTERING; SURFACTANT; ADSORPTION; COMPLEXES; AGGREGATION;
D O I：
10.1080/01932690903123692
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：
Interaction of sodium dodecyl sulfate (SDS) with the cationic polyelectrolyte poly(ethyleneimine) (PEI) was investigated in this study. Turbidity measurements were performed in order to analyze the interaction and complex formation in bulk solution as a function of polymer concentration and pH. Surface tension measurements were made to investigate the properties of SDS/PEI/water mixtures at air/solution interface. Results revealed that SDS/PEI complexes form in solution depending on the surfactant and polymer concentration. A decrease was observed in surface tension values in the presence of SDS/PEI mixtures compared to the values of pure SDS solutions. Both solution and interfacial properties exhibited pH dependent behavior. A shift was seen in the critical micelle concentration of SDS solutions as a function of PEI concentration and solution pH. Monovalent and divalent salt additions showed some influence on the interfacial properties of SDS solutions in the presence of PEI.
引用
收藏
页码：23 / 30
页数：8
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