scholarly journals Kinetics of nonionic surfactant adsorption at a fluid-fluid interface from a micellar solution

2005 ◽  
Vol 123 (12) ◽  
pp. 126101 ◽  
Author(s):  
Hervé Mohrbach
Keyword(s):  
Nonionic Surfactant ◽  
Micellar Solution ◽  
Surfactant Adsorption ◽  
Fluid Interface ◽  
Kinetics Of

Adsorption Kinetics of Diblock Copolymers from a Micellar Solution on Silica and Titania

1998 ◽  
Vol 31 (26) ◽  
pp. 9281-9294 ◽  
Author(s):  
H. D. Bijsterbosch ◽  
M. A. Cohen Stuart ◽  
G. J. Fleer
Keyword(s):  
Adsorption Kinetics ◽  
Micellar Solution ◽  
Diblock Copolymers ◽  
Kinetics Of ◽  
Silica And Titania

Kinetics of Preferential Adsorption of Amphiphilic Star Block Copolymers that Tether by Their Corona Blocks at the Solid/Fluid Interface

2014 ◽  
Vol 47 (12) ◽  
pp. 4048-4055 ◽  
Author(s):  
Jose Alonzo ◽  
Juan Pablo Hinestrosa ◽  
Jimmy W. Mays ◽  
S. Michael Kilbey
Keyword(s):  
Block Copolymers ◽  
Fluid Interface ◽  
Preferential Adsorption ◽  
Star Block Copolymers ◽  
Kinetics Of

scholarly journals Distribution of nickel(II), cadmium(II) and copper(II) chelates of 2-(2-pyridylazo)-5-methylphenol in two phases separated from micellar solution of nonionic surfactant.

1987 ◽  
Vol 3 (5) ◽  
pp. 433-436 ◽  
Author(s):  
Hiroto WATANABE ◽  
Tamio KAMIDATE ◽  
Shigeru KAWAMORITA ◽  
Kensaku HARAGUCHI ◽  
Masahiro MIYAJIMA
Keyword(s):  
Nonionic Surfactant ◽  
Micellar Solution ◽  
Two Phases

Solubilization Kinetics of Triacyl Glycerol and Hydrocarbon Emulsion Droplets in a Micellar Solution

1996 ◽  
Vol 61 (6) ◽  
pp. 1114-1117 ◽  
Author(s):  
JOHN N. COUPLAND ◽  
JOCHEN WEISS ◽  
ALENKA LOVY ◽  
D. JULIAN McCLEMENTS
Keyword(s):  
Micellar Solution ◽  
Emulsion Droplets ◽  
Hydrocarbon Emulsion ◽  
Triacyl Glycerol ◽  
Kinetics Of

scholarly journals Surfactant adsorption kinetics in microfluidics

2016 ◽  
Vol 113 (41) ◽  
pp. 11465-11470 ◽  
Author(s):  
Birte Riechers ◽  
Florine Maes ◽  
Elias Akoury ◽  
Benoît Semin ◽  
Philipp Gruner ◽  
...  
Keyword(s):  
Nonionic Surfactants ◽  
Adsorption Process ◽  
Surfactant Adsorption ◽  
Kinetic Measurement ◽  
Small Droplet ◽  
Kinetics Of Adsorption ◽  
Droplet Flow ◽  
Surfactant Interactions ◽  
Adsorption Desorption ◽  
Kinetics Of

Emulsions are metastable dispersions. Their lifetimes are directly related to the dynamics of surfactants. We design a microfluidic method to measure the kinetics of adsorption of surfactants to the droplet interface, a key process involved in foaming, emulsification, and droplet coarsening. The method is based on the pH decay in the droplet as a direct measurement of the adsorption of a carboxylic acid surfactant to the interface. From the kinetic measurement of the bulk equilibration of the pH, we fully determine the adsorption process of the surfactant. The small droplet size and the convection during the droplet flow ensure that the transport of surfactant through the bulk is not limiting the kinetics of adsorption. To validate our measurements, we show that the adsorption process determines the timescale required to stabilize droplets against coalescence, and we show that the interface should be covered at more than 90% to prevent coalescence. We therefore quantitatively link the process of adsorption/desorption, the stabilization of emulsions, and the kinetics of solute partitioning—here through ion exchange—unraveling the timescales governing these processes. Our method can be further generalized to other surfactants, including nonionic surfactants, by making use of fluorophore–surfactant interactions.

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