Giant Micelles

Properties and Applications

Author: Raoul Zana,Eric W. Kaler

Publisher: CRC Press

ISBN: 9781420007121

Category: Science

Page: 576

View: 2272

The co-evolution of a strong theoretical framework alongside application of a range of sophisticated experimental tools engendered rapid advancement in the study of “giant micelles.” Beginning with Anacker and Debye’s 1951 experimental study of elongated micelles by light scattering and their subsequent theoretical inference that the thermodynamics of these structures would have to reflect an opposing force model, theory and experiment have progressed hand in hand. This progress, along with growing interest in the practical and industrial applications of these structures in cleansers, cosmetics, pharmaceuticals, and energy production, demands a comprehensive, single-source reference to the current state-of-the-science. Drawing on the expertise of internationally known scientists, Giant Micelles: Properties and Applications summarizes the range of behaviors encountered in solutions of micelles and their applications in industrial processes. The book introduces theoretical aspects of the rheological behavior and formation of giant micelles from different viewpoints including molecular-level thermodynamic theory and computer simulations. It continues by focusing on the results of a variety of experimental studies using methods such as cryo-transmission electron microscopy, scattering techniques, phase diagrams, linear and non-linear rheology, and chemical relaxation. Illustrating the properties of giant micelles on solid surfaces, the book also considers systems of smart micelles that respond to external stimuli by a change of shape. The authors describe giant micelles formed from amphiphilic block copolymers as well as non-covalent polymers that exhibit similar rheological behavior to giant micelles. Finally, the chapters address current and emerging applications of giant micelles in oil and gas production, drag reduction, drug-delivery formulations, and personal care products such as shampoo. By gathering a range of information into one volume, Giant Micelles: Properties and Applications provides scientists with an essential reference on these fascinating materials and their emerging role in industrial application.

Nanotechnologies for Solubilization and Delivery in Foods, Cosmetics and Pharmaceuticals

Author: Nissim Garti

Publisher: DEStech Publications, Inc

ISBN: 1605950165

Category: Technology & Engineering

Page: 391

View: 1103

Beginning with the basics of surfactant chemistry and micellization, this book presents a range of nanotechnology strategies for controlling colloidal and polymeric structures for the solubilization and targeted delivery of food nutrients and pharmaceuticals. The book demonstrates how vehicles for delivering bioactive ingredients through a variety of oral, transdermal, buccal and mucosal routes, can be synthesized by nanolevel manipulation of colloidal systems, proteins, peptides, liquid crystalline phases, organogels and dendrimers. Special attention is given to the modification of mesophases in micellar and liquid crystal systems, which are shown to be productive templates and chemical nanoreactors for uniquely structured nanocarriers. The volume connects micro- and nanolevel modification of emulsion-based and biopolymeric systems, as well as the formation of new nanoparticles, to key properties of absorption, bioavailability and therapeutic effectiveness for dozens of well-known and experimental drugs, food nutrients and antimicrobials. Throughout, a stress is placed on chemical strategies for enhancing the efficiency of drug and nutrient carriers. The information presented in this book is applicable to the design of micro- and nanolevel delivery systems with improved targeting, more efficient controlled release, and superior in vivo penetration into dermal and cellular structures.

Turbulent Drag Reduction by Surfactant Additives

Author: Feng-Chen Li,Bo Yu,Jin-Jia Wei,Yasuo Kawaguchi

Publisher: John Wiley & Sons

ISBN: 1118181115

Category: Science

Page: 320

View: 8764

Turbulent drag reduction by additives has long been a hot researchtopic. This phenomenon is inherently associated with multifoldexpertise. Solutions of drag-reducing additives are usuallyviscoelastic fluids having complicated rheological properties.Exploring the characteristics of drag-reduced turbulent flows callsfor uniquely designed experimental and numerical simulationtechniques and elaborate theoretical considerations. Pertinentlyunderstanding the turbulent drag reduction mechanism necessitiesmastering the fundamentals of turbulence and establishing a properrelationship between turbulence and the rheological propertiesinduced by additives. Promoting the applications of the dragreduction phenomenon requires the knowledge from different fieldssuch as chemical engineering, mechanical engineering, municipalengineering, and so on. This book gives a thorough elucidation ofthe turbulence characteristics and rheological behaviors, theories,special techniques and application issues for drag-reducing flowsby surfactant additives based on the state-of-the-art of scientificresearch results through the latest experimental studies, numericalsimulations and theoretical analyses. Covers turbulent drag reduction, heat transfer reduction,complex rheology and the real-world applications of dragreduction Introduces advanced testing techniques, such as PIV, LDA, andtheir applications in current experiments, illustrated withmultiple diagrams and equations Real-world examples of the topic’s increasingly importantindustrial applications enable readers to implement cost- andenergy-saving measures Explains the tools before presenting the research results, togive readers coverage of the subject from both theoretical andexperimental viewpoints Consolidates interdisciplinary information on turbulent dragreduction by additives Turbulent Drag Reduction by Surfactant Additives isgeared for researchers, graduate students, and engineers in thefields of Fluid Mechanics, Mechanical Engineering, Turbulence,Chemical Engineering, Municipal Engineering. Researchers andpractitioners involved in the fields of Flow Control, Chemistry,Computational Fluid Dynamics, Experimental Fluid Dynamics, andRheology will also find this book to be a much-needed reference onthe topic.

Wormlike Micelles

Advances in Systems, Characterisation and Applications

Author: Cecile A Dreiss,Yujun Feng

Publisher: Royal Society of Chemistry

ISBN: 1782629785

Category: Science

Page: 414

View: 5611

Wormlike micelles are elongated flexible self-assembled structures created from the aggregation of amphiphiles and their resulting dynamic networks have gained attention for a number of uses, particularly in the oil industry. Written by experts, Wormlike Micelles describes the latest developments in the field providing an authoritative guide on the subject. The book starts with an introductory chapter giving an overview of the area and then looks at the three key topics of new wormlike micelle systems, characterization and applications. New systems covered in the first part include reverse wormlike micelles and stimuli-responsive wormlike micelles. The second part explores cutting-edge techniques that have led to advances in the understanding of their structure and dynamics, including direct imaging techniques and the combination of rheology with small-angle neutron scattering techniques. Finally, the book reviews their use in oil and gas well treatments as well as surfactant drag reducing solutions. Aimed at postgraduate students and researchers, this text is essential reading for anyone interested in soft matter systems.

Rheology - Volume II

Author: Crispulo Gallegos

Publisher: EOLSS Publications

ISBN: 1848263201

Category:

Page: 468

View: 9570

Rheology is a component of Encyclopedia of Chemical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty Encyclopedias. Rheology is the study of the flow of matter. It is classified as a physics discipline and focuses on substances that do not maintain a constant viscosity or state of flow. That can involve liquids, soft solids and solids that are under conditions that cause them to flow. It applies to substances which have a complex molecular structure, such as muds, sludges, suspensions, polymers and other glass formers, as well as many foods and additives, bodily fluids and other biological materials. The theme on Rheology focuses on five main areas, namely, basic concepts of rheology; rheometry; rheological materials, rheological processes and theoretical rheology. Of course, many of the chapters contain material from more than one general area. Rheology is an interdisciplinary subject which embraces many aspects of mathematics, physics, chemistry, engineering and biology. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.

Colloids and Interfaces with Surfactants and Polymers

An Introduction

Author: Jim Goodwin

Publisher: Wiley

ISBN: 9780470841426

Category: Science

Page: 296

View: 5323

This text is both an introduction to the field and a bridge to the more specialist texts that are available, and includes recent ideas that have been developed on the interactions between particles and the concentrated state. It covers the fundamentals of colloid and interface science, placing emphasis on concentrated systems and the ideas associated with them. Takes a user-friendly, non-mathematical approach Includes the widely used techniques such as rheology in greater depth than other introductory texts Gives many practical examples of colloid and interface science Provides guidance on how to apply new ideas to a number of different systems

Polymerization Process Modeling

Author: N. A. Dotson,R. Galvan,R. L. Laurence,M. Tirrell

Publisher: John Wiley & Sons

ISBN: 9780471186151

Category: Science

Page: 392

View: 4219

Large numbers of chemical engineers work with polymerization reactions and the problems and the challenges particular to the production of polymers. These problems have no counterparts in small-molecule reactions, and thus usually are neglected in standard reactor courses. This book provides a clearly written, comprehensive textbook on polymerization reactor engineering, appropriate for senior-level undergraduate and 1st- and 2nd-year graduate students. It focuses on polymer structure and structure-property relationships conditions that can play a role in dictating stucture.

Liposomes

from physics to applications

Author: D. D. Lasic

Publisher: Elsevier Science Ltd

ISBN: N.A

Category: Science

Page: 575

View: 9901

Issues in Chemical Engineering and other Chemistry Specialties: 2011 Edition

Author: N.A

Publisher: ScholarlyEditions

ISBN: 146496355X

Category: Technology & Engineering

Page: 2996

View: 9822

Issues in Chemical Engineering and other Chemistry Specialties: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Chemical Engineering and other Chemistry Specialties. The editors have built Issues in Chemical Engineering and other Chemistry Specialties: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Chemical Engineering and other Chemistry Specialties in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Chemical Engineering and other Chemistry Specialties: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.