Mechanism of steric stabilization of foams and foam films with adsorbed layers of surfactant-polyelectrolyte complexes

被引:0
|
作者
Babak, V.G. [1 ]
Vikhoreva, G.A. [1 ]
Lukina, I.G. [1 ]
Kuznetsova, L.V. [1 ]
机构
[1] Inst Elementoorganicheskikh, Soedinenij im. A.N. Nesmeyanova RAN, Moscow, Russia
来源
Khimiya i Tekhnologiya Vody | 1997年 / 19卷 / 03期
关键词
Adsorption - Ammonium compounds - Bubbles (in fluids) - Chitin - Complexation - Derivatives - Phase interfaces - Polyelectrolytes - Surface active agents;
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摘要
The effect of cationic surfactant (tetradecyltrimethylammonium bromide) and anionic polyelectrolyte (carboxymethylchitin) in their aqueous mixtures on the stability of foams and microscopic foam films formed between two air bubbles has been studied. It is established that a strong synergistic (nonadditive) effect of these mixtures on the foam lifetime is due to the formation of nonstoichiometric water-soluble surfactant-polyelectrolyte complexes with a high adsorption activity on the air-water interface.
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页码:149 / 153
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