### Détail de l'auteur

## Auteur Georgios M. Kontogeorgis |

### Documents disponibles écrits par cet auteur

Ajouter le résultat dans votre panier Faire une suggestion Affiner la recherche Interroger des sources externes

Introduction to applied colloid and surface chemistry / Georgios M. Kontogeorgis (2016)

Titre : Introduction to applied colloid and surface chemistry Type de document : texte imprimé Auteurs : Georgios M. Kontogeorgis ; Soren Kiil Editeur : CHICHESTER : John Wiley & Sons, Ltd Année de publication : 2016 Importance : 1 vol. (XIX-367 p.) Présentation : ill., couv. ill. en coul. Format : 25 cm ISBN/ISSN/EAN : 978-1-118-88118-7 Note générale : Bibliogr. Index. Annexes Langues : Anglais ( eng)Catégories : Thésaurus Agro-alimentaire

AGENT DE SURFACE ; ADSORPTION ; TENSION SUPERFICIELLE ; MICROSCOPIEListe Plan de classement

4.8 (SYSTEMES COLLOIDAUX) [Classement Massy]RAMEAU

Analyse spectrale ; Cinétique chimique ; Colloïdes ; Désinfection ; Détergents ; Émulsions ; Industries agroalimentaires -- Appareils et matériel -- Nettoyage ; Lumière -- Diffusion ; Mouillage (chimie des surfaces) ; Mousses ; RhéologieRésumé : Colloid and Surface Chemistry is a subject of immense importance and implications both to our everyday life and numerous industrial sectors, ranging from coatings and materials to medicine and biotechnology.

How do detergents really clean? (Why can’t we just use water ?) Why is milk “milky” Why do we use eggs so often for making sauces ? Can we deliver drugs in better and controlled ways? Coating industries wish to manufacture improved coatings e.g. for providing corrosion resistance, which are also environmentally friendly i.e. less based on organic solvents and if possible exclusively on water. Food companies want to develop healthy, tasty but also long-lasting food products which appeal to the environmental authorities and the consumer. Detergent and enzyme companies are working to develop improved formulations which clean more persistent stains, at lower temperatures and amounts, to the benefit of both the environment and our pocket. Cosmetics is also big business! Creams, lotions and other personal care products are really just complex emulsions.

All of the above can be explained by the principles and methods of colloid and surface chemistry. A course on this topic is truly valuable to chemists, chemical engineers, biologists, material and food scientists and many more.Type de document : Livre Table des matières : 1 Introduction to Colloid and Surface Chemistry

1.1 What are the colloids and interfaces? Why are they important? Why do we study them together?

1.1.1 Colloids and interfaces

1.2 Applications

1.3 Three ways of classifying the colloids

1.4 How to prepare colloid systems

1.5 Key properties of colloids

1.6 Concluding remarks

2 Intermolecular and Interparticle Forces

2.1 Introduction – Why and which forces are of importance in colloid and surface chemistry?

2.2 Two important long-range forces between molecules

2.3 The van der Waals forces

2.3.1 Van der Waals forces between molecules

2.3.2 Forces between particles and surfaces

2.3.3 Importance of the van der Waals forces

2.4 Concluding remarks

Appendix 2.1 A note on the uniqueness of the water molecule and some of the recent debates on water structure and peculiar properties

3 Surface and Interfacial Tensions – Principles and Estimation Methods

3.1 Introduction

3.2 Concept of surface tension – applications

3.3 Interfacial tensions, work of adhesion and spreading

3.3.1 Interfacial tensions

3.3.2 Work of adhesion and cohesion

3.3.3 Spreading coefficient in liquid–liquid interfaces

3.4 Measurement and estimation methods for surface tensions

3.4.1 The parachor method

3.4.2 Other methods

3.5 Measurement and estimation methods for interfacial tensions

3.5.1 “Direct” theories (Girifalco–Good and Neumann)

3.5.2 Early “surface component” theories (Fowkes, Owens–Wendt, Hansen/Skaarup)

3.5.3 Acid–base theory of van Oss–Good (van Oss et al., 1987) – possibly the best theory to-date

3.5.4 Discussion

3.6 Summary

Appendix 3.1 Hansen solubility parameters (HSP) for selected solvents

Appendix 3.2 The “φ” parameter of the Girifalco–Good equation (Equation 3.16) for liquid–liquid interfaces. Data from Girifalco and Good (1957, 1960)

4 Fundamental Equations in Colloid and Surface Science

4.1 Introduction

4.2 The Young equation of contact angle

4.2.1 Contact angle, spreading pressure and work of adhesion for solid–liquid interfaces

4.2.2 Validity of the Young equation

4.2.3 Complexity of solid surfaces and effects on contact angle

4.3 Young–Laplace equation for the pressure difference across a curved surface

4.4 Kelvin equation for the vapour pressure, P, of a droplet (curved surface) over the “ordinary” vapour pressure Psat for a flat surface

4.4.1 Applications of the Kelvin equation

4.5 The Gibbs adsorption equation

4.6 Applications of the Gibbs equation (adsorption, monolayers, molecular weight of proteins)

4.7 Monolayers

4.8 Conclusions

Appendix 4.1 Derivation of the Young–Laplace equation

Appendix 4.2 Derivation of the Kelvin equation

Appendix 4.3 Derivation of the Gibbs adsorption equation

5 Surfactants and Self-assembly. Detergents and Cleaning

5.1 Introduction to surfactants – basic properties, self-assembly and critical packing parameter (CPP)

5.2 Micelles and critical micelle concentration (CMC)

5.3 Micellization – theories and key parameters

5.4 Surfactants and cleaning (detergency)

5.5 Other applications of surfactants

5.6 Concluding remarks

Appendix 5.1 Useful relationships from geometry

Appendix 5.2 The Hydrophilic–Lipophilic Balance (HLB)

6 Wetting and Adhesion

6.1 Introduction

6.2 Wetting and adhesion via the Zisman plot and theories for interfacial tensions

6.2.1 Zisman plot

6.2.2 Combining theories of interfacial tensions with Young equation and work of adhesion for studying wetting and adhesion

6.2.3 Applications of wetting and solid characterization

6.3 Adhesion theories

6.3.1 Introduction – adhesion theories

6.3.2 Adhesive forces

6.4 Practical adhesion: forces, work of adhesion, problems and protection

6.4.1 Effect of surface phenomena and mechanical properties

6.4.2 Practical adhesion – locus of failure

6.4.3 Adhesion problems and some solutions

6.5 Concluding remarks

7 Adsorption in Colloid and Surface Science – A Universal Concept

7.1 Introduction – universality of adsorption – overview

7.2 Adsorption theories, two-dimensional equations of state and surface tension–concentration trends: a clear relationship

7.3 Adsorption of gases on solids

7.3.1 Adsorption using the Langmuir equation

7.3.2 Adsorption of gases on solids using the BET equation

7.4 Adsorption from solution

7.4.1 Adsorption using the Langmuir equation

7.4.2 Adsorption from solution – the effect of solvent and concentration on adsorption

7.5 Adsorption of surfactants and polymers

7.5.1 Adsorption of surfactants and the role of CPP

7.5.2 Adsorption of polymers

7.6 Concluding remarks

8 Characterization Methods of Colloids – Part I: Kinetic Properties and Rheology

8.1 Introduction – importance of kinetic properties

8.2 Brownian motion

8.3 Sedimentation and creaming (Stokes and Einstein equations)

8.3.1 Stokes equation

8.3.2 Effect of particle shape

8.3.3 Einstein equation

8.4 Kinetic properties via the ultracentrifuge

8.4.1 Molecular weight estimated from kinetic experiments (1 = medium and 2 = particle or droplet)

8.4.2 Sedimentation velocity experiments (1 = medium and 2 = particle or droplet)

8.5 Osmosis and osmotic pressure

8.6 Rheology of colloidal dispersions

8.6.1 Introduction

8.6.2 Special characteristics of colloid dispersions’ rheology

8.7 Concluding remarks

9 Characterization Methods of Colloids – Part II: Optical Properties (Scattering, Spectroscopy and Microscopy)

9.1 Introduction

9.2 Optical microscopy

9.3 Electron microscopy

9.4 Atomic force microscopy

9.5 Light scattering

9.6 Spectroscopy

9.7 Concluding remarks

10 Colloid Stability – Part I: The Major Players (van der Waals and Electrical Forces)

10.1 Introduction – key forces and potential energy plots – overview

10.1.1 Critical coagulation concentration

10.2 van der Waals forces between particles and surfaces – basics

10.3 Estimation of effective Hamaker constants

10.4 vdW forces for different geometries – some examples

10.4.1 Complex fluids

10.5 Electrostatic forces: the electric double layer and the origin of surface charge

10.6 Electrical forces: key parameters (Debye length and zeta potential)

10.6.1 Surface or zeta potential and electrophoretic experiments

10.6.2 The Debye length

10.7 Electrical forces

10.8 Schulze–Hardy rule and the critical coagulation concentration (CCC)

10.9 Concluding remarks on colloid stability, the vdW and electric forces

10.9.1 vdW forces

10.9.2 Electric forces

Appendix 10.1 A note on the terminology of colloid stability

Appendix 10.2 Gouy–Chapman theory of the diffuse electrical double-layer

11 Colloid Stability – Part II: The DLVO Theory – Kinetics of Aggregation

11.1 DLVO theory – a rapid overview

11.2 DLVO theory – effect of various parameters

11.3 DLVO theory – experimental verification and applications

11.3.1 Critical coagulation concentration and the Hofmeister series

11.3.2 DLVO, experiments and limitations

11.4 Kinetics of aggregation

11.4.1 General – the Smoluchowski model

11.4.2 Fast (diffusion-controlled) coagulation

11.4.3 Stability ratio W

11.4.4 Structure of aggregates

11.5 Concluding remarks

12 Emulsions

12.1 Introduction

12.2 Applications and characterization of emulsions

12.3 Destabilization of emulsions

12.4 Emulsion stability

12.5 Quantitative representation of the steric stabilization

12.5.1 Temperature-dependency of steric stabilization

12.5.2 Conditions for good stabilization

12.6 Emulsion design

12.7 PIT – Phase inversion temperature of emulsion based on non-ionic emulsifiers

12.8 Concluding remarks

13 Foams

13.1 Introduction

13.2 Applications of foams

13.3 Characterization of foams

13.4 Preparation of foams

13.5 Measurements of foam stability

13.6 Destabilization of foams

13.6.1 Gas diffusion

13.6.2 Film (lamella) rupture

13.6.3 Drainage of foam by gravity

13.7 Stabilization of foams

13.7.1 Changing surface viscosity

13.7.2 Surface elasticity

13.7.3 Polymers and foam stabilization

13.7.4 Additives

13.7.5 Foams and DLVO theory

13.8 How to avoid and destroy foams

13.8.1 Mechanisms of antifoaming/defoaming

13.9 Rheology of foams

13.10 Concluding remarks

14 Multicomponent Adsorption

14.1 Introduction

14.2 Langmuir theory for multicomponent adsorption

14.3 Thermodynamic (ideal and real) adsorbed solution theories (IAST and RAST)

14.4 Multicomponent potential theory of adsorption (MPTA)

14.5 Discussion. Comparison of models

14.5.1 IAST – literature studies

14.5.2 IAST versus Langmuir

14.5.3 MPTA versus IAST versus Langmuir

14.6 Conclusions

Appendix 14.1 Proof of Equations 14.10a,b

15 Sixty Years with Theories for Interfacial Tension – Quo Vadis?

15.1 Introduction

15.2 Early theories

15.3 van Oss–Good and Neumann theories

15.3.1 The two theories in brief

15.3.2 What do van Oss–Good and Neumann say about their own theories?

15.3.3 What do van Oss–Good and Neumann say about each other’s theories?

15.3.4 What do others say about van Oss–Good and Neumann theories?

15.3.5 What do we believe about the van Oss–Good and Neumann theories?

15.4 A new theory for estimating interfacial tension using the partial solvation parameters (Panayiotou)

15.5 Conclusions – Quo Vadis?

16 Epilogue and Review Problems

Review Problems in Colloid and Surface ChemistryPermalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=192708 Introduction to applied colloid and surface chemistry [texte imprimé] / Georgios M. Kontogeorgis ; Soren Kiil . - CHICHESTER : John Wiley & Sons, Ltd, 2016 . - 1 vol. (XIX-367 p.) : ill., couv. ill. en coul. ; 25 cm.ISBN: 978-1-118-88118-7

Bibliogr. Index. AnnexesLangues: Anglais (eng)

Catégories : Thésaurus Agro-alimentaire

AGENT DE SURFACE ; ADSORPTION ; TENSION SUPERFICIELLE ; MICROSCOPIEListe Plan de classement

4.8 (SYSTEMES COLLOIDAUX) [Classement Massy]RAMEAU

Analyse spectrale ; Cinétique chimique ; Colloïdes ; Désinfection ; Détergents ; Émulsions ; Industries agroalimentaires -- Appareils et matériel -- Nettoyage ; Lumière -- Diffusion ; Mouillage (chimie des surfaces) ; Mousses ; RhéologieRésumé : Colloid and Surface Chemistry is a subject of immense importance and implications both to our everyday life and numerous industrial sectors, ranging from coatings and materials to medicine and biotechnology.

How do detergents really clean? (Why can’t we just use water ?) Why is milk “milky” Why do we use eggs so often for making sauces ? Can we deliver drugs in better and controlled ways? Coating industries wish to manufacture improved coatings e.g. for providing corrosion resistance, which are also environmentally friendly i.e. less based on organic solvents and if possible exclusively on water. Food companies want to develop healthy, tasty but also long-lasting food products which appeal to the environmental authorities and the consumer. Detergent and enzyme companies are working to develop improved formulations which clean more persistent stains, at lower temperatures and amounts, to the benefit of both the environment and our pocket. Cosmetics is also big business! Creams, lotions and other personal care products are really just complex emulsions.

All of the above can be explained by the principles and methods of colloid and surface chemistry. A course on this topic is truly valuable to chemists, chemical engineers, biologists, material and food scientists and many more.Type de document : Livre Table des matières : 1 Introduction to Colloid and Surface Chemistry

1.1 What are the colloids and interfaces? Why are they important? Why do we study them together?

1.1.1 Colloids and interfaces

1.2 Applications

1.3 Three ways of classifying the colloids

1.4 How to prepare colloid systems

1.5 Key properties of colloids

1.6 Concluding remarks

2 Intermolecular and Interparticle Forces

2.1 Introduction – Why and which forces are of importance in colloid and surface chemistry?

2.2 Two important long-range forces between molecules

2.3 The van der Waals forces

2.3.1 Van der Waals forces between molecules

2.3.2 Forces between particles and surfaces

2.3.3 Importance of the van der Waals forces

2.4 Concluding remarks

Appendix 2.1 A note on the uniqueness of the water molecule and some of the recent debates on water structure and peculiar properties

3 Surface and Interfacial Tensions – Principles and Estimation Methods

3.1 Introduction

3.2 Concept of surface tension – applications

3.3 Interfacial tensions, work of adhesion and spreading

3.3.1 Interfacial tensions

3.3.2 Work of adhesion and cohesion

3.3.3 Spreading coefficient in liquid–liquid interfaces

3.4 Measurement and estimation methods for surface tensions

3.4.1 The parachor method

3.4.2 Other methods

3.5 Measurement and estimation methods for interfacial tensions

3.5.1 “Direct” theories (Girifalco–Good and Neumann)

3.5.2 Early “surface component” theories (Fowkes, Owens–Wendt, Hansen/Skaarup)

3.5.3 Acid–base theory of van Oss–Good (van Oss et al., 1987) – possibly the best theory to-date

3.5.4 Discussion

3.6 Summary

Appendix 3.1 Hansen solubility parameters (HSP) for selected solvents

Appendix 3.2 The “φ” parameter of the Girifalco–Good equation (Equation 3.16) for liquid–liquid interfaces. Data from Girifalco and Good (1957, 1960)

4 Fundamental Equations in Colloid and Surface Science

4.1 Introduction

4.2 The Young equation of contact angle

4.2.1 Contact angle, spreading pressure and work of adhesion for solid–liquid interfaces

4.2.2 Validity of the Young equation

4.2.3 Complexity of solid surfaces and effects on contact angle

4.3 Young–Laplace equation for the pressure difference across a curved surface

4.4 Kelvin equation for the vapour pressure, P, of a droplet (curved surface) over the “ordinary” vapour pressure Psat for a flat surface

4.4.1 Applications of the Kelvin equation

4.5 The Gibbs adsorption equation

4.6 Applications of the Gibbs equation (adsorption, monolayers, molecular weight of proteins)

4.7 Monolayers

4.8 Conclusions

Appendix 4.1 Derivation of the Young–Laplace equation

Appendix 4.2 Derivation of the Kelvin equation

Appendix 4.3 Derivation of the Gibbs adsorption equation

5 Surfactants and Self-assembly. Detergents and Cleaning

5.1 Introduction to surfactants – basic properties, self-assembly and critical packing parameter (CPP)

5.2 Micelles and critical micelle concentration (CMC)

5.3 Micellization – theories and key parameters

5.4 Surfactants and cleaning (detergency)

5.5 Other applications of surfactants

5.6 Concluding remarks

Appendix 5.1 Useful relationships from geometry

Appendix 5.2 The Hydrophilic–Lipophilic Balance (HLB)

6 Wetting and Adhesion

6.1 Introduction

6.2 Wetting and adhesion via the Zisman plot and theories for interfacial tensions

6.2.1 Zisman plot

6.2.2 Combining theories of interfacial tensions with Young equation and work of adhesion for studying wetting and adhesion

6.2.3 Applications of wetting and solid characterization

6.3 Adhesion theories

6.3.1 Introduction – adhesion theories

6.3.2 Adhesive forces

6.4 Practical adhesion: forces, work of adhesion, problems and protection

6.4.1 Effect of surface phenomena and mechanical properties

6.4.2 Practical adhesion – locus of failure

6.4.3 Adhesion problems and some solutions

6.5 Concluding remarks

7 Adsorption in Colloid and Surface Science – A Universal Concept

7.1 Introduction – universality of adsorption – overview

7.2 Adsorption theories, two-dimensional equations of state and surface tension–concentration trends: a clear relationship

7.3 Adsorption of gases on solids

7.3.1 Adsorption using the Langmuir equation

7.3.2 Adsorption of gases on solids using the BET equation

7.4 Adsorption from solution

7.4.1 Adsorption using the Langmuir equation

7.4.2 Adsorption from solution – the effect of solvent and concentration on adsorption

7.5 Adsorption of surfactants and polymers

7.5.1 Adsorption of surfactants and the role of CPP

7.5.2 Adsorption of polymers

7.6 Concluding remarks

8 Characterization Methods of Colloids – Part I: Kinetic Properties and Rheology

8.1 Introduction – importance of kinetic properties

8.2 Brownian motion

8.3 Sedimentation and creaming (Stokes and Einstein equations)

8.3.1 Stokes equation

8.3.2 Effect of particle shape

8.3.3 Einstein equation

8.4 Kinetic properties via the ultracentrifuge

8.4.1 Molecular weight estimated from kinetic experiments (1 = medium and 2 = particle or droplet)

8.4.2 Sedimentation velocity experiments (1 = medium and 2 = particle or droplet)

8.5 Osmosis and osmotic pressure

8.6 Rheology of colloidal dispersions

8.6.1 Introduction

8.6.2 Special characteristics of colloid dispersions’ rheology

8.7 Concluding remarks

9 Characterization Methods of Colloids – Part II: Optical Properties (Scattering, Spectroscopy and Microscopy)

9.1 Introduction

9.2 Optical microscopy

9.3 Electron microscopy

9.4 Atomic force microscopy

9.5 Light scattering

9.6 Spectroscopy

9.7 Concluding remarks

10 Colloid Stability – Part I: The Major Players (van der Waals and Electrical Forces)

10.1 Introduction – key forces and potential energy plots – overview

10.1.1 Critical coagulation concentration

10.2 van der Waals forces between particles and surfaces – basics

10.3 Estimation of effective Hamaker constants

10.4 vdW forces for different geometries – some examples

10.4.1 Complex fluids

10.5 Electrostatic forces: the electric double layer and the origin of surface charge

10.6 Electrical forces: key parameters (Debye length and zeta potential)

10.6.1 Surface or zeta potential and electrophoretic experiments

10.6.2 The Debye length

10.7 Electrical forces

10.8 Schulze–Hardy rule and the critical coagulation concentration (CCC)

10.9 Concluding remarks on colloid stability, the vdW and electric forces

10.9.1 vdW forces

10.9.2 Electric forces

Appendix 10.1 A note on the terminology of colloid stability

Appendix 10.2 Gouy–Chapman theory of the diffuse electrical double-layer

11 Colloid Stability – Part II: The DLVO Theory – Kinetics of Aggregation

11.1 DLVO theory – a rapid overview

11.2 DLVO theory – effect of various parameters

11.3 DLVO theory – experimental verification and applications

11.3.1 Critical coagulation concentration and the Hofmeister series

11.3.2 DLVO, experiments and limitations

11.4 Kinetics of aggregation

11.4.1 General – the Smoluchowski model

11.4.2 Fast (diffusion-controlled) coagulation

11.4.3 Stability ratio W

11.4.4 Structure of aggregates

11.5 Concluding remarks

12 Emulsions

12.1 Introduction

12.2 Applications and characterization of emulsions

12.3 Destabilization of emulsions

12.4 Emulsion stability

12.5 Quantitative representation of the steric stabilization

12.5.1 Temperature-dependency of steric stabilization

12.5.2 Conditions for good stabilization

12.6 Emulsion design

12.7 PIT – Phase inversion temperature of emulsion based on non-ionic emulsifiers

12.8 Concluding remarks

13 Foams

13.1 Introduction

13.2 Applications of foams

13.3 Characterization of foams

13.4 Preparation of foams

13.5 Measurements of foam stability

13.6 Destabilization of foams

13.6.1 Gas diffusion

13.6.2 Film (lamella) rupture

13.6.3 Drainage of foam by gravity

13.7 Stabilization of foams

13.7.1 Changing surface viscosity

13.7.2 Surface elasticity

13.7.3 Polymers and foam stabilization

13.7.4 Additives

13.7.5 Foams and DLVO theory

13.8 How to avoid and destroy foams

13.8.1 Mechanisms of antifoaming/defoaming

13.9 Rheology of foams

13.10 Concluding remarks

14 Multicomponent Adsorption

14.1 Introduction

14.2 Langmuir theory for multicomponent adsorption

14.3 Thermodynamic (ideal and real) adsorbed solution theories (IAST and RAST)

14.4 Multicomponent potential theory of adsorption (MPTA)

14.5 Discussion. Comparison of models

14.5.1 IAST – literature studies

14.5.2 IAST versus Langmuir

14.5.3 MPTA versus IAST versus Langmuir

14.6 Conclusions

Appendix 14.1 Proof of Equations 14.10a,b

15 Sixty Years with Theories for Interfacial Tension – Quo Vadis?

15.1 Introduction

15.2 Early theories

15.3 van Oss–Good and Neumann theories

15.3.1 The two theories in brief

15.3.2 What do van Oss–Good and Neumann say about their own theories?

15.3.3 What do van Oss–Good and Neumann say about each other’s theories?

15.3.4 What do others say about van Oss–Good and Neumann theories?

15.3.5 What do we believe about the van Oss–Good and Neumann theories?

15.4 A new theory for estimating interfacial tension using the partial solvation parameters (Panayiotou)

15.5 Conclusions – Quo Vadis?

16 Epilogue and Review Problems

Review Problems in Colloid and Surface ChemistryPermalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=192708 ## Réservation

Réserver ce document## Exemplaires

Localisation Emplacement Section Cote Support Code-barres Disponibilité Massy Bibliothèque CHIMIE-BIOCHIMIE-BIOPHYSIQUE KON 4.8 Papier 33004000619547 Empruntable