Dynamic surface tension of micellar solutions in the millisecond and submillisecond time range

2006 ◽  
Vol 302 (1) ◽  
pp. 40-46 ◽  
Author(s):  
V.B. Fainerman ◽  
V.D. Mys ◽  
A.V. Makievski ◽  
J.T. Petkov ◽  
R. Miller
Keyword(s):  
Surface Tension ◽  
Dynamic Surface Tension ◽  
Time Range ◽  
Micellar Solutions ◽  
Dynamic Surface

Dynamic Surface Tension of Ionic Liquid [C10(EPy)2]Br2 Using Maximum Bubble Pressure Method

2012 ◽  
Vol 622-623 ◽  
pp. 1410-1414
Author(s):  
Dahye La ◽  
Amuthan Chinnappan ◽  
Hern Kim
Keyword(s):  
Surface Tension ◽  
Ionic Liquids ◽  
Dynamic Surface Tension ◽  
Time Range ◽  
Dynamic Surface ◽  
Maximum Bubble Pressure ◽  
Maximum Bubble Pressure Method ◽  
Pressure Method ◽  
Bubble Pressure ◽  
Long Time

The ionic liquids used in this study are (1,1’-decane-1,10-diylbis (3-ethylpyridinium) dibromide. The reason of this experiment is to figure out character of ionic liquids called green solvent. It can help to use of ILs to know that specific feature since ionic liquids are made so many different way. Using maximum bubble pressure method, we tested dynamic surface tension in range of 298K~418K and time range is 0.03s~60s. Among various method of inspecting dynamic surface tension, maximum bubble pressure is the easiest way to have such description of the solution at air/water interface. In the short time, it show only diffusion model, but in the long time range there is different aspect which it called diffusion-controlled model

scholarly journals A pH-Responsive Foam Formulated with PAA/Gemini 12-2-12 Complexes

2021 ◽  
Vol 5 (3) ◽  
pp. 37
Author(s):  
Hernán Martinelli ◽  
Claudia Domínguez ◽  
Marcos Fernández Leyes ◽  
Sergio Moya ◽  
Hernán Ritacco
Keyword(s):  
Surface Tension ◽  
Dynamic Surface Tension ◽  
Foam Formation ◽  
Ph Responsive ◽  
Dynamic Surface ◽  
X Ray ◽  
Equilibrium Surface Tension ◽  
Potential Applications ◽  
The Stability ◽  
Air Interfaces

In the search for responsive complexes with potential applications in the formulation of smart dispersed systems such as foams, we hypothesized that a pH-responsive system could be formulated with polyacrylic acid (PAA) mixed with a cationic surfactant, Gemini 12-2-12 (G12). We studied PAA-G12 complexes at liquid–air interfaces by equilibrium and dynamic surface tension, surface rheology, and X-ray reflectometry (XRR). We found that complexes adsorb at the interfaces synergistically, lowering the equilibrium surface tension at surfactant concentrations well below the critical micelle concentration (cmc) of the surfactant. We studied the stability of foams formulated with the complexes as a function of pH. The foams respond reversibly to pH changes: at pH 3.5, they are very stable; at pH > 6, the complexes do not form foams at all. The data presented here demonstrate that foam formation and its pH responsiveness are due to interfacial dynamics.

An axisymmetric model for the analysis of dynamic surface tension

RSC Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 7921-7931 ◽  
Author(s):  
S. I. Arias ◽  
J. R. Fernández ◽  
L. García-Rio ◽  
J. C. Mejuto ◽  
M. C. Muñiz ◽  
...  
Keyword(s):  
Surface Tension ◽  
Diffusion Length ◽  
Dynamic Surface Tension ◽  
Ionic Surfactants ◽  
Adsorption Behaviour ◽  
Dynamic Surface ◽  
Axisymmetric Model

An axisymmetric model accounts for dynamic surface tension of non-ionic surfactants under consideration of diffusive adsorption behaviour with a finite diffusion length.

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