Fundamentals of Soft Interfaces in Colloid and Surface Chemistry

1st Edition, Volume 37 - September 9, 2024
Imprint: Academic Press
Author: Hiroyuki Ohshima
Language: English
Paperback ISBN:
9 7 8 - 0 - 4 4 3 - 1 6 1 1 6 - 2
eBook ISBN:
9 7 8 - 0 - 4 4 3 - 1 6 1 1 7 - 9

This book explains and summarizes the fundamentals of soft interfaces and soft particles from a colloid and surface chemistry standpoint, bringing knowledge together into a si… Read more

Fundamentals of Soft Interfaces in Colloid and Surface Chemistry

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This book explains and summarizes the fundamentals of soft interfaces and soft particles from a colloid and surface chemistry standpoint, bringing knowledge together into a single resource for the first time. It provides detailed mathematical description of colloidal and interfacial systems, with a particular emphasis on ionic, electrokinetic, and electrostatic phenomena. Hiroyuki Ohshima covers the most recent theoretical advances in the field of electrostatic interactions between soft interfaces, electrophoresis, diffusiophoresis, gel electrophoresis of soft particles including ionic size effects, ion-partitioning effects, and the effects of hydrodynamic slip on hydrophobic surfaces. It will help readers by providing a range of approximate analytic formulas which can be used to interpret various interfacial phenomena of soft interfaces and analyze experimental data in various fields. Fundamentals of Soft Interfaces in Colloid and Surface Chemistry is written for graduate students and researchers chiefly in chemistry but also chemical engineering, physics, and materials science.

Cover image
Title page
Table of Contents
Copyright
Interface Science and Technology
Preface
List of symbols
Part I Charge and potential at soft interfaces
Chapter 1. Poisson–Boltzmann equation for the potential distribution around a charged surface
1.1. Introduction
1.2. Charge and potential of a hard particle
1.3. Charge and potential of a soft particle
1.4. pH-dependent potential distribution across a soft interface
1.5. Diffuse soft interfaces
Chapter 2. Effects of ionic size: The modified Poisson–Boltzmann equation
2.1. Introduction
2.2. Modified Poisson–Boltzmann equation
2.3. Potential distribution around a spherical or cylindrical colloidal particle
Chapter 3. Ion-size effect on charge and potential relationship
3.1. Introduction
3.2. Modified Poisson-Boltzmann equation for a soft interface
3.3. Potential distribution across a soft interface
Chapter 4. Discrete charge effects
4.1. Introduction
4.2. A planar hard surface
4.3. Discrete charge effects on the Donnan potential and surface potential of a soft particle
Part II Interaction between two colloidal particles
Chapter 5. Electrostatic interaction between two hard particles
5.1. Introduction
5.2. Electrostatic forces between two charged particles in an electrolyte solution
5.3. Electrostatic interaction between two parallel weakly charged similar plates
5.4. General expressions for the force and energy of the electrostatic interaction between two parallel arbitrarily charged similar plates
5.5. Electrostatic interaction between two parallel weakly charged dissimilar plates
5.6. Linear superposition approximation
5.7. Derjaguin's approximation
Chapter 6. Ion-size effect on the electrostatic interaction between two particles
6.1. Introduction
6.2. Linear superposition approximation
6.3. Exact electrostatic interaction force and energy between two parallel similar plates
Chapter 7. Electrostatic interaction between two soft particles
7.1. Introduction
7.2. Two parallel soft plates
7.3. Two soft spheres
7.4. Two soft cylinders
7.5. pH effects
7.6. Ion-partitioning effects
7.7. Effects of polymer segment distribution: A soft-step function model
7.8. Ion-size effects
7.9. Discrete charge effects
7.10. Interaction between two soft particles after contact
Chapter 8. van der Waals interaction between two particles
8.1. Introduction
8.2. Interaction between two parallel plates
8.3. Two spheres or cylinders
8.4. Two spheroids
8.5. Two particles immersed in a medium
8.6. Two soft particles
8.7. Hamaker constant and surface tension of liquids
8.8. Relationship between Hamaker constant and Hansen solubility parameter for nonpolar liquids
Chapter 9. DLVO theory of colloid stability
9.1. Introduction
9.2. Total interaction energy between two identical spherical particles
9.3. Critical coagulation concentration and Schultze–Hardy empirical rule
9.4. Stability map
9.5. Kinetics of coagulation
9.6. Improvement of the stability ratio
9.7. Approximate expressions for the stability ratio
9.8. Finite ion size effect on the stability ratio
Chapter 10. Non-DLVO interactions
10.1. Introduction
10.2. Steric interaction between two polymer-coated particles
10.3. Depletion interaction: Asakura–Oosawa theory
Chapter 11. Total interaction energy between two polymer-coated particles
11.1. Introduction
11.2. Interaction between two polymer-coated spherical particles
11.3. Interaction between two parallel plates covered with a polyelectrolyte brush layer
11.4. Interaction between two spherical particles covered with a polyelectrolyte brush layer
Part III Electrokinetics of soft particles
Chapter 12. Electrophoresis: Motion of colloidal particles in an electric field
12.1. Introduction
12.2. Two limiting cases: Hückel's equation and Smoluchowski's equation
12.3. General expression for the electrophoretic mobility of a charged spherical particle
12.4. Electrophoretic mobility of a weakly charged spherical particle: Henry's equation
12.5. Electrophoretic mobility of a highly charged spherical particle: Relaxation effect
12.6. Electrophoretic mobility of a cylindrical particle
12.7. Ion size effect on the electrophoretic mobility of a spherical colloidal particle
Chapter 13. Electrophoresis of soft particles
13.1. Introduction
13.2. Large soft particle with a planar core surface
13.3. General theory of the electrophoresis of spherical soft particles
13.4. Approximate mobility expression of soft particles
13.5. Cylindrical soft particles
13.6. Accurate mobility expression for weakly charged spherical soft particles
13.7. Relaxation effect
13.8. pH-dependent electrophoretic mobility of soft particles
Chapter 14. Electrophoretic mobility of a soft particle with a nonuniform distribution of polyelectrolyte segments
14.1. Introduction
14.2. Exponential distribution of polyelectrolyte segments
14.3. A soft step function model
Chapter 15. Electrophoresis of a colloidal particle with a hydrodynamically slipping surface
15.1. Introduction
15.2. Plate-like particle with a flat surface
15.3. Spherical slip particle without the electrical double layer
15.4. General theory of the electrophoresis of a spherical particle with a slip surface
15.5. Electrophoretic mobility of a cylindrical colloidal particle with a slip surface
15.6. Similarity between a liquid drop and a spherical solid particle with a slip surface
15.7. Soft particle with a slip core
Chapter 16. Transient electrophoresis and dynamic electrophoresis
16.1. Introduction
16.2. Transient electrophoresis of a spherical particle
16.3. Transient electrophoresis of a cylindrical particle
16.4. Transient electrophoresis of a spherical soft particle
16.5. Transient electrophoresis of a spherical colloidal particle with a slip surface
16.6. Simple relation between transient electrophoresis and dynamic electrophoresis
Chapter 17. Gel electrophoresis: Electrophoresis of colloidal particles in a polymer gel medium
17.1. Introduction
17.2. Stokes drag on a spherical particle in a polymer gel medium
17.3. Electroosmotic flow in a charged polymer gel medium
17.4. Gel electrophoresis of a charged spherical colloidal particle
17.5. Transient gel electrophoresis of a spherical colloidal particle
Chapter 18. Gel electrophoresis of a soft particle: Analytic approximations
18.1. Introduction
18.2. General theory of gel electrophoresis of a soft particle
18.3. General expression for the gel electrophoretic mobility of a weakly charged spherical particle
18.4. Dependence of the gel electrophoretic mobility of a spherical soft particle on various parameters
18.5. Analytic expression for the gel electrophoretic mobility of a weakly charged spherical soft particle applicable for all parameter values
Chapter 19. Diffusiophoresis: Motion of colloidal particles in an electrolyte concentration gradient
19.1. Introduction
19.2. Diffusiophoresis of a large particle with a planar surface
19.3. General expression for the diffusiophoretic mobility of a spherical particle
19.4. Approximate diffusiophoretic mobility expression for a spherical particle
19.5. Spherical particle in a solution of general electrolytes
19.6. Diffusiophoresis of a cylindrical particle
19.7. Ion size effect
Chapter 20. Diffusiophoresis of soft particles
20.1. Introduction
20.2. Diffusiophoresis of a large soft particle with a planar core surface
20.3. Diffusiophoresis of a spherical soft particle
Part IV Ion transport and ion adsorption at soft interfaces
Chapter 21. Membrane transport and adsorption kinetics with time delay
21.1. Introduction
21.2. Membrane transport equations with time delay
21.3. Effect of the distribution of delay time
21.4. Overshoot phenomena in an ion-exchange membrane system
21.5. Absorption kinetics with time delay
21.6. Overshoot and oscillation in the surface tension of gelatin solution
Chapter 22. Membrane potential
22.1. Introduction
22.2. Membrane potential and Donnan potential
22.3. pH effects
22.4. Time-dependent membraned potential
Chapter 23. Transport of ions on a surface with an arbitrary charge distribution
23.1. Introduction
23.2. Electric potential distribution
23.3. Liquid flow velocity distribution
23.4. Some examples
Index

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Fundamentals of Soft Interfaces in Colloid and Surface Chemistry

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