scholarly journals The Study of Salt Induced Viscoelastic Wormlike Micelles in Aqueous Systems of Mixed Anionic/Nonionic Surfactants

1970 ◽  
Vol 23 ◽  
pp. 65-73 ◽  
Author(s):  
Rekha Goswami Shrestha ◽  
Kenji Aramaki
Keyword(s):  
Nonionic Surfactants ◽  
Wormlike Micelles ◽  
Micellar Solutions ◽  
Aqueous Systems ◽  
Zero Shear Viscosity ◽  
One Dimensional ◽  
Rheological Measurements ◽  
Micellar Growth ◽  
Dilute Aqueous Solution ◽  
Single Stress

Formation of viscoelastic wormlike micelles in aqueous systems of mixed amino acid based anionic and nonionic surfactants in presence of salt is presented. N-dodecylglutamic acid (LAD) upon neutralization with L-Lysine in 1:2 mole ratio forms globular type of micelles above critical micelle concentration and the solution follows Newtonian fluid like behavior at 25ºC. The addition of tri(oxyethylene) nmonotetradecyl ether (C14EO3) to the semi-dilute aqueous solution of the LADLysine-2 induces one dimensional micellar growth and viscosity of solution increases. After a certain concentration of C14EO3 micelles get entangled and form a rigid network of wormlike micelles and viscosity increases by several orders of magnitude. The wormlike micellar solutions show a viscoelastic character and can be described the Maxwell mechanical model with a single stress relaxation. Rheological measurements have shown that zero shear viscosity (No) increases with the C14EO3 concentration gradually at first sharpl, and then finally decreases before phase separation.Keywords: nonionic surfactant, wormlike micelles, rheology, viscoelastic solutionsDOI: 10.3126/jncs.v23i0.2098J. Nepal Chem. Soc., Vol. 23, 2008/2009 Page: 65-73

Vanadium pentoxide 1-D nanostructures applied to dye removal from aqueous systems by coupling adsorption and visible-light photodegradation

RSC Advances ◽  
2015 ◽  
Vol 5 (16) ◽  
pp. 12000-12006 ◽  
Author(s):  
Waldir Avansi ◽  
Vagner R. de Mendonça ◽  
Osmando F. Lopes ◽  
Caue Ribeiro
Keyword(s):  
Visible Light ◽  
Hydrothermal Method ◽  
Vanadium Pentoxide ◽  
Dye Removal ◽  
Dye Adsorption ◽  
Adsorption Properties ◽  
Aqueous Systems ◽  
One Dimensional ◽  
1D Nanostructures

This paper evaluates the photocatalytic and dye adsorption properties of highly crystalline orthorhombic vanadium pentoxide (V2O5) one-dimensional (1D) nanostructures, such as nanowires and nanorods, synthesized by a hydrothermal method.

scholarly journals Dissociation and recombination in the electrolyte flow model

2021 ◽  
Vol 2090 (1) ◽  
pp. 012076
Author(s):  
A Shobukhov ◽  
H Koibuchi
Keyword(s):  
Flow Model ◽  
Numerical Solutions ◽  
Stable Equilibrium ◽  
Steady State Solution ◽  
System Of Equations ◽  
Constant Flow ◽  
Dimensional Model ◽  
Electrolyte Flow ◽  
One Dimensional ◽  
Dilute Aqueous Solution

Abstract We propose a one-dimensional model for the dilute aqueous solution of NaCl which is treated as an incompressible fluid placed in the external electric field. This model is based on the Poisson-Nernst-Planck system of equations, which also contains the constant flow velocity as a parameter and considers the dissociation and the recombination of ions. We study the steady-state solution analytically and prove that it is a stable equilibrium. Analyzing the numerical solutions, we demonstrate the importance of dissociation and recombination for the physical meaningfulness of the model.

Solubilization of Dodecane, Tetrachloroethylene, and 1,2-Dichlorobenzene in Micellar Solutions of Ethoxylated Nonionic Surfactants

1997 ◽  
Vol 31 (5) ◽  
pp. 1382-1389 ◽  
Author(s):  
Kurt D. Pennell ◽  
Andrew M. Adinolfi ◽  
Linda M. Abriola ◽  
Mamadou S. Diallo
Keyword(s):  
Nonionic Surfactants ◽  
Micellar Solutions

scholarly journals Wormlike Micelles in Mixed Amino Acid Surfactant/Nonionic Surfactant Aqueous Systems and the Effect of Added Electrolytes

2009 ◽  
Vol 58 (5) ◽  
pp. 243-254 ◽  
Author(s):  
Rekha Goswami Shrestha ◽  
Carlos Rodriguez-Abreu ◽  
Kenji Aramaki
Keyword(s):  
Amino Acid ◽  
Nonionic Surfactant ◽  
Wormlike Micelles ◽  
Aqueous Systems

Cryogenic wormlike micelles

Soft Matter ◽  
2019 ◽  
Vol 15 (12) ◽  
pp. 2511-2516 ◽  
Author(s):  
Hongyao Yin ◽  
Yujun Feng ◽  
Peixun Li ◽  
James Doutch ◽  
Yixiu Han ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Rheological Behavior ◽  
Self Assembly ◽  
Mixed Solvent ◽  
Freezing Point ◽  
The Self ◽  
Wormlike Micelles ◽  
Micellar Solutions ◽  
Zwitterionic Surfactant

Cryogenic wormlike micellar solutions with a freezing point far below 0 °C and unique rheological behavior are fabricated from the self-assembly of a C22-tailed zwitterionic surfactant in a mixed solvent of ethylene glycol and water. Such fluids could find applications in areas where viscoelasticity is highly desired at subfreezing temperatures.

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