Dynamics of Thinning of Foam Films Stabilized by n-Dodecyl-β-maltoside

• DOI: 10.1021/la9036748
• Publication Date: 2010-02-04T14:05:41Z
• Authors: Silke Stöckle; Pedro Blecua; Helmuth Möhwald; Rumen Krastev
• Keywords: Thinning

We studied the process of thinning thin liquid films stabilized with nonionic surfactant n-dodecyl-β-maltoside (β-C12G2) primary interest in interfacial diffusion processes during dependent on concentration. The concentration film forming solutions was varied from 0.01 to 1.0 mM through critical micellar 0.16 at constant electrolyte (NaCl) concentration, nominally 0.2 M. This assures formation Newton black end process. velocity analyzed combining previously developed theoretical approaches. From model, which accounts for bulk and interfaces, an analytical function derived fitted numerically experimental data. Quantitative information about mobility molecules surfaces could be obtained. find that above a 0.12 behave as immobile nondeformable decelerates follows predictions Reynolds flow between two disks. Moreover, we apply theory free area coefficients our results show it is reasonable ranges applicable used system.