Tadros Emulsion Formation and Stability

1. Auflage 2013
ISBN: 978-3-527-64796-5
Verlag: Wiley-VCH
Format: EPUB
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 272 Seiten, E-Book

The importance of emulsification techniques, their use in the production of nanoparticles for biomedical applications as well as application of rheological techniques for studying the interaction between the emulsion droplets is gathered in this reference work. Written by some of the top scientists within their respective fields, this book covers such topics as emulsions, nano-emulsions, nano-dispersions and novel techniques for their investigation. It also considers the fundamental approach in areas such as controlled release, drug delivery and various applications of nanotechnology.   From the contents: * Emulsion Formation, Stability, and Rheology * Emulsion Formation in Membrane and Microfl uidic Devices * Adsorption Characteristics of Ionic Surfactants at Water/Hexane Interface Obtained by PAT and ODBA * Measurement Techniques Applicable to the Investigation of Emulsion Formation during Processing * Emulsification in Rotor - Stator Mixers * Formulation, Characterization, and Property Control of Paraffin Emulsions * Polymeric O/W Nanoemulsions Obtained by the Phase Inversion Composition (PIC) Method for Biomedical Nanoparticle Preparation * Rheology and Stability of Sterically Stabilized Emulsions   Aimed at surface, physical, and polymer chemists, materials scientists, and chemical engineers.

Autoren/Hrsg.

Tadros, Tharwat F.

Inhaltsverzeichnis

PREFACE   EMULSION FORMATION, STABILITY, AND RHEOLOGY Introduction Industrial Applications of Emulsions Physical Chemistry of Emulsion Systems Thermodynamics of Emulsion Formation and Breakdown Interaction Energies (Forces) between Emulsion Droplets and Their Combinations Adsorption of Surfactants at the Liquid/Liquid Interface Selection of Emulsifiers Creaming or Sedimentation of Emulsions Flocculation of Emulsions Ostwald Ripening Emulsion Coalescence Rheology of Emulsions Bulk Rheology of Emulsions Viscoelastic Properties of Concentrated Emulsions   EMULSION FORMATION IN MEMBRANE AND MICROFLUIDIC DEVICES Introduction Membrane Emulsification (ME) Microfluidic Junctions and Flow-Focusing Devices Microfluidic Devices with Parallel Microchannel Arrays Glass Capillary Microfluidic Devices Application of Droplets Formed in Membrane and Microfluidic Devices Conclusions   ADSORPTION CHARACTERISTICS OF IONIC SURFACTANTS AT WATER/HEXANE INTERFACE OBTAINED BY PAT AND ODBA Introduction Experimental Tools Theory Results Summary   MEASUREMENT TECHNIQUES APPLICABLE TO THE INVESTIGATION OF EMULSION FORMATION DURING PROCESSING Introduction Online Droplet Size Measurement Techniques Techniques Investigating Droplet Coalescence Concluding Remarks   EMULSIFICATION IN ROTOR?STATOR MIXERS Introduction Classification and Applications of Rotor?Stator Mixers Engineering Description of Emulsification/Dispersion Processes Advanced Analysis of Emulsification/Dispersion Processes in Rotor?Stator Mixers Conclusion   FORMULATION, CHARACTERIZATION, AND PROPERTY CONTROL OF PARAFFIN EMULSIONS Introduction Surfactant Systems Used in Formulation of Paraffin Emulsions Formation and Characterization of Paraffin Emulsions Control of Particle Size Stability of Paraffin Emulsions Conclusions   POLYMERIC O/W NANO-EMULSIONS OBTAINED BY THE PHASE INVERSION COMPOSITION (PIC) METHOD FOR BIOMEDICAL NANOPARTICLE PREPARATION Introduction Phase Inversion Emulsification Methods Aspects on the Choice of the Components Ethylcellulose Nano-Emulsions for Nanoparticle Preparation Final Remarks   RHEOLOGY AND STABILITY OF STERICALLY STABILIZED EMULSIONS Introduction General Classification of Polymeric Surfactants Interaction between Droplets Containing Adsorbed Polymeric Surfactant Layers: Steric Stabilization Emulsions Stabilized by Polymeric Surfactants Principles of Rheological Techniques Rheology of Oil-in-Water (O/W) Emulsions Stabilized with Poly(Vinyl Alcohol)   INDEX

PREFACE   EMULSION FORMATION, STABILITY, AND RHEOLOGY Introduction Industrial Applications of Emulsions Physical Chemistry of Emulsion Systems Thermodynamics of Emulsion Formation and Breakdown Interaction Energies (Forces) between Emulsion Droplets and Their Combinations Adsorption of Surfactants at the Liquid/Liquid Interface Selection of Emulsifiers Creaming or Sedimentation of Emulsions Flocculation of Emulsions Ostwald Ripening Emulsion Coalescence Rheology of Emulsions Bulk Rheology of Emulsions Viscoelastic Properties of Concentrated Emulsions   EMULSION FORMATION IN MEMBRANE AND MICROFLUIDIC DEVICES Introduction Membrane Emulsification (ME) Microfluidic Junctions and Flow-Focusing Devices Microfluidic Devices with Parallel Microchannel Arrays Glass Capillary Microfluidic Devices Application of Droplets Formed in Membrane and Microfluidic Devices Conclusions   ADSORPTION CHARACTERISTICS OF IONIC SURFACTANTS AT WATER/HEXANE INTERFACE OBTAINED BY PAT AND ODBA Introduction Experimental Tools Theory Results Summary   MEASUREMENT TECHNIQUES APPLICABLE TO THE INVESTIGATION OF EMULSION FORMATION DURING PROCESSING Introduction Online Droplet Size Measurement Techniques Techniques Investigating Droplet Coalescence Concluding Remarks   EMULSIFICATION IN ROTOR - STATOR MIXERS Introduction Classification and Applications of Rotor - Stator Mixers Engineering Description of Emulsification/Dispersion Processes Advanced Analysis of Emulsification/Dispersion Processes in Rotor - Stator Mixers Conclusion   FORMULATION, CHARACTERIZATION, AND PROPERTY CONTROL OF PARAFFIN EMULSIONS Introduction Surfactant Systems Used in Formulation of Paraffin Emulsions Formation and Characterization of Paraffin Emulsions Control of Particle Size Stability of Paraffin Emulsions Conclusions   POLYMERIC O/W NANO-EMULSIONS OBTAINED BY THE PHASE INVERSION COMPOSITION (PIC) METHOD FOR BIOMEDICAL NANOPARTICLE PREPARATION Introduction Phase Inversion Emulsification Methods Aspects on the Choice of the Components Ethylcellulose Nano-Emulsions for Nanoparticle Preparation Final Remarks   RHEOLOGY AND STABILITY OF STERICALLY STABILIZED EMULSIONS Introduction General Classification of Polymeric Surfactants Interaction between Droplets Containing Adsorbed Polymeric Surfactant Layers: Steric Stabilization Emulsions Stabilized by Polymeric Surfactants Principles of Rheological Techniques Rheology of Oil-in-Water (O/W) Emulsions Stabilized with Poly(Vinyl Alcohol)   INDEX

Über Autor(innen)

After finishing his PhD at Alexandria University, Tharwat Tadros was appointed lecturer in Physical Chemistry (1962-1966) at the same University. Between 1966 and 1969, he spent a sabbatical at the Agricultural University of Wageningen and T.N.O in Delft, the Netherlands. Thereafter he worked at I.C.I. and ZENECA until 1994, where he researched various fields of surfactants, emulsions, suspensions, microemulsions, wetting spreading and adhesion, and rheology. During that period he was also appointed visiting professor at Imperial College London, Bristol University and Reading University. In 1992, he was elected President of the International Association of Colloid and Interface Science. Since leaving ZENECA, Dr. Tadros has worked as a consultant for various industries and also given several courses in his specialized field. He is the recipient of two medals from the Royal Society of Chemistry in the UK, and has more than 250 scientific papers to his name.