The properties of ionized monolayers. Part 3.—The thermodynamics of the ionic double layer of sodium octanoate

1958 ◽  
Vol 54 (0) ◽  
pp. 1400-1407 ◽  
Author(s):  
E. Matijević ◽  
B. A. Pethica
Keyword(s):  
Double Layer ◽  
Sodium Octanoate ◽  
Ionic Double Layer

Ionic double layer of atomically flat gold formed on mica templates

2009 ◽  
Vol 54 (14) ◽  
pp. 3766-3774 ◽  
Author(s):  
Terry C. Chilcott ◽  
Elicia L.S. Wong ◽  
Hans G.L. Coster ◽  
Adelle C.F. Coster ◽  
Michael James
Keyword(s):  
Double Layer ◽  
Atomically Flat ◽  
Ionic Double Layer

The electroviscous effect for suspensions of solid spherical particles

1950 ◽  
Vol 203 (1075) ◽  
pp. 533-551 ◽  
Keyword(s):  
Theoretical Analysis ◽  
Surface Charge ◽  
General Formula ◽  
Double Layer ◽  
Effective Viscosity ◽  
Theoretical Work ◽  
Spherical Particles ◽  
Electroviscous Effect ◽  
Electrokinetic Phenomenon ◽  
Ionic Double Layer

In this paper a theoretical analysis is made of the electrokinetic phenomenon known as the ‘electroviscous effect’. A general formula is given for the effective viscosity of a suspension of solid, spherical, charged non-conducting particles in an electrolyte. The increase of the effective viscosity due to the surface charge and the ionic double layer surrounding the particles is determined by a modification of Einstein’s method for the calculation of the viscosity of solid suspensions. The effective viscosity may be expressed in the form η = η 0 {1+2.5 (v/V) (1+Ʃ ∞ r -1 a r Q r )}, where η 0 is the viscosity of the electrolyte, v the volume of suspension in volume V of solution and Qe is the charge on each particle. It is shown that a 1 = 0 and a 2 is determined explicitly. It is found that the electroviscous contribution to η, for a given charge Q , tends to increase as the thickness of the double layer increases. When the thickness of the double layer is small compared with the radius of the particle the effect vanishes. A comparison with previous theoretical work is made, and it is shown that much improved agreement with experiment is obtained.

Modification of Poly(ethylene terephthalate) Surfaces by Linear Poly(vinyl amine)

2009 ◽  
Vol 64 (9-10) ◽  
pp. 653-657 ◽  
Author(s):  
Ralph Wittke ◽  
Dierk Knittel ◽  
Robert Kaufmann ◽  
Eckhard Schollmeyer
Keyword(s):  
Proton Transfer ◽  
Electric Conductivity ◽  
Double Layer ◽  
Uv Irradiation ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Linear Poly ◽  
Poly Ethylene ◽  
Ionic Double Layer

The feasibility of fixing linear poly(vinyl amine) (PVAm) onto the surface of a poly(ethylene terephthalate) (PET) foil is shown. Pretreatment of the PET foil for PVAm anchoring is UV irradiation generated by an excimer lamp (λ = 222 nm). Thereby newly formed COOH-groups are able to build up in situ an ionic double layer with PVAm by proton transfer. The properties of the modified PET foil like wetting performance and electric conductivity are significantly improved by this treatment.

The discrete-ion effect in ionic double-layer theory

1967 ◽  
Vol 13 (3) ◽  
pp. 280-329 ◽  
Author(s):  
S. Levine ◽  
J. Mingins ◽  
G.M. Bell
Keyword(s):  
Double Layer ◽  
Double Layer Theory ◽  
Ionic Double Layer
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