Study of Adsorbed Monolayers of a Cationic Surfactant and an Anionic Polyelectrolyte at the Air−Water Interface

Langmuir ◽  
2003 ◽  
Vol 19 (14) ◽  
pp. 5680-5690 ◽  
Author(s):  
Nirmesh J. Jain ◽  
Pierre-Antoine Albouy ◽  
Dominique Langevin
Keyword(s):  
Cationic Surfactant ◽  
Water Interface ◽  
Anionic Polyelectrolyte ◽  
Air Water Interface

Preparation of a new lignin-based anionic/cationic surfactant and its solution behaviour

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2441-2448 ◽  
Author(s):  
Mingsong Zhou ◽  
Wenli Wang ◽  
Dongjie Yang ◽  
Xueqing Qiu
Keyword(s):  
Surface Tension ◽  
Cationic Surfactant ◽  
Anionic Surfactant ◽  
Water Interface ◽  
Air Water Interface ◽  
Solution Behaviour

The lignin-based cationic/anionic surfactant CA-SLs have a stronger ability to lower the surface tension at the air/water interface compared with SL–PEG, but a weaker one than CTAB.

scholarly journals Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface

Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 95 ◽  
Author(s):  
Marcos Fernández Leyes ◽  
Santiago Gimenez Reyes ◽  
Ezequiel Cuenca ◽  
Jhon F. Sánchez Morales ◽  
Hernán Ritacco
Keyword(s):  
Cationic Surfactant ◽  
Adsorption Process ◽  
Surface Concentration ◽  
Interfacial Region ◽  
Water Interface ◽  
Surface Tension Data ◽  
Time Resolved ◽  
Initial Stage ◽  
Wilhelmy Plate ◽  
Air Water Interface

We studied the dynamics of adsorption at the air-water interface of a cationic surfactant bearing two charges, Gemini 12-2-12, at concentrations below and above the critical micelle concentration (cmc). We used maximum bubble pressure and Wilhelmy plate techniques in order to access all time scales in the adsorption process. We found that the adsorption dynamics are controlled by diffusion at the initial stage of the adsorption process (milliseconds) and it is kinetically controlled by an electrostatic barrier (minute) approaching the equilibrium surfactant surface concentration. Between these two extremes, we found several relaxation phenomena, all following exponential decays with characteristic times spanning from one to hundreds of seconds. By means of time-resolved surface potential measurements, we show that these processes involve charge redistribution within the interfacial region. The surface tension data are analyzed and interpreted in the framework of the free energy approach.

Adsorption behavior of DNA onto a cationic surfactant monolayer at the air–water interface

2013 ◽  
Vol 617 ◽  
pp. 124-130 ◽  
Author(s):  
Chaitali Hansda ◽  
Syed Arshad Hussain ◽  
Debajyoti Bhattacharjee ◽  
Pabitra Kr. Paul
Keyword(s):  
Cationic Surfactant ◽  
Adsorption Behavior ◽  
Water Interface ◽  
Air Water Interface

Complexation of Cationic Surfactant and Anionic Polymer at the Air−Water Interface

1996 ◽  
Vol 29 (23) ◽  
pp. 7412-7417 ◽  
Author(s):  
Atef Asnacios ◽  
Dominique Langevin ◽  
Jean-François Argillier
Keyword(s):  
Cationic Surfactant ◽  
Water Interface ◽  
Anionic Polymer ◽  
Air Water Interface
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