Properties and Applications

Author: Raoul Zana,Eric W. Kaler

Publisher: CRC Press

ISBN: 9781420007121

Category: Science

Page: 576

View: 3858

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.
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Author: Nissim Garti

Publisher: DEStech Publications, Inc

ISBN: 1605950165

Category: Technology & Engineering

Page: 391

View: 9874

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

Publisher: John Wiley & Sons

ISBN: 1118181115

Category: Science

Page: 320

View: 5655

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.
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Author: Cecile A Dreiss,Yujun Feng

Publisher: Royal Society of Chemistry

ISBN: 1782629785

Category: Science

Page: 414

View: 7331

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.
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Author: Crispulo Gallegos

Publisher: EOLSS Publications

ISBN: 1848263201

Category:

Page: 468

View: 2582

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

Publisher: John Wiley & Sons

ISBN: 9780471186151

Category: Science

Page: 392

View: 2512

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.
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Author: Marcus Elstner

Publisher: Springer-Verlag

ISBN: 3662553643

Category: Science

Page: 385

View: 7350

Dieses Lehrbuch ist essentiell für Studierende im Bachelor-Studiengang Chemie. Es geht um "wissen", "verstehen" und "anwenden". Das Wissen um die grundlegenden Gesetze und Phänomene. Das Verstehen der Konzepte und Grundlagen. Das Anwenden der Thermodynamik, Kinetik und Elektrochemie auf chemische Fragestellungen.
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Author: N.A

Publisher: ScholarlyEditions

ISBN: 146496355X

Category: Technology & Engineering

Page: 2996

View: 8585

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/.
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Author: Gert Böhme

Publisher: Springer-Verlag

ISBN: 3322801403

Category: Science

Page: 352

View: 9418

Die Grundlagen und Methoden, die zur theoretischen Modellierung und zur Analyse von Strömungsvorgängen mit nicht-newtonschen Fluiden erforderlich sind, werden in diesem Lehrbuch vorgestellt. Zunächst werden die kinematischen, die kontinuumsmechanischen und die stofflichen Grundlagen ausführlich erläutert. Die Anwendung des Basiswissens erfolgt exemplarisch anhand ausgewählter Strömungsvorgänge, die maßgeblich von den nichtlinearen Fließeigenschaften, von den Normalspannungsdifferenzen oder vom Gedächtnis der Flüssigkeiten beeinflusst werden. Dabei haben sich die Inhalte, die Schwerpunkte und die Beispiele gegenüber der ersten Auflage wesentlich geändert. Erstmalig in einem deutschsprachigen Lehrbuch werden auch die Grundzüge einer numerischen Strömungssimulation unter Berücksichtigung komplexer rheologischer Stoffmodelle behandelt.
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from physics to applications

Author: D. D. Lasic

Publisher: Elsevier Science Ltd

ISBN: N.A

Category: Science

Page: 575

View: 6411

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Author: Sebastian Koltzenburg,Michael Maskos,Oskar Nuyken

Publisher: Springer-Verlag

ISBN: 3642347738

Category: Technology & Engineering

Page: 607

View: 5986

Das vorliegende Lehrbuch beschäftigt sich mit der Synthese, der Charakterisierung und den technischen Anwendungen von Polymeren. Ziel ist es, eine breite und ausgeglichene Kenntnis der Grundbegriffe der makromolekularen Chemie und der Physikochemie dieser Verbindungsklasse zu vermitteln. Aufbauend auf den Grundkenntnissen der organischen Chemie und der Thermodynamik, vermittelt das Buch ein leicht verständliches und dennoch tief gehendes Bild dieser sehr dynamischen und immer wichtiger werdenden Wissenschaft in der Schnittmenge der Chemie, der Physik, den Ingenieurwissenschaften und dem Life-Science-Sektor.
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Author: Carl Nägeli,Simon Schwendener

Publisher: N.A

ISBN: 9783742895639

Category:

Page: 668

View: 4957

Das Mikroskop, Theorie und Anwendung desselben ist ein unveranderter, hochwertiger Nachdruck der Originalausgabe aus dem Jahr 1867. Hansebooks ist Herausgeber von Literatur zu unterschiedlichen Themengebieten wie Forschung und Wissenschaft, Reisen und Expeditionen, Kochen und Ernahrung, Medizin und weiteren Genres.Der Schwerpunkt des Verlages liegt auf dem Erhalt historischer Literatur.Viele Werke historischer Schriftsteller und Wissenschaftler sind heute nur noch als Antiquitaten erhaltlich. Hansebooks verlegt diese Bucher neu und tragt damit zum Erhalt selten gewordener Literatur und historischem Wissen auch fur die Zukunft bei."
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Physikalische Berichte

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Physics

Page: N.A

View: 5016

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Author: Hermann Staudinger

Publisher: Springer-Verlag

ISBN: 3642922848

Category: Science

Page: 540

View: 6218

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfängen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen für die historische wie auch die disziplingeschichtliche Forschung zur Verfügung, die jeweils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.
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Author: Georg Fuchs

Publisher: Georg Thieme Verlag

ISBN: 3132418870

Category: Science

Page: 752

View: 5181

Das Standardwerk der Mikrobiologie – aktuell und umfassend Hier erfährst du alles, was du im Biologiestudium über Mikrobiologie wissen musst: - die verschiedenen Mikroorganismen im Überblick - allgemeiner Zellstoffwechsel mit Biosynthesen und Abbau organischer Verbindungen - unterschiedliche Stoffwechselleistungen der verschiedenen Mikroorganismen - Genetik und Molekularbiologie - Ökologie, Symbiose, Antagonismus - Systematik der Mikroorganismen, mit Vernetzung zum Stoffwechselkapitel - Biogeochemie und marine Mikrobiologie - Einführung in die medizinische Mikrobiologie und Infektionskrankheiten - Biotechnologie, inkl. Informationen zu Fermentationstechnik und Lebensmittelbiologie - Anhang mit den wichtigsten thermodynamischen Grundlagen des Stoffwechsels - Vokabularium mit den wichtigsten ins Deutsche übersetzten Fachausdrücken Großes Format, übersichtliches Layout, bewährtes didaktisches Konzept: - viele Bilder und Grafiken, komplett farbig - klar formulierter Haupttext - spannend und verständlich geschrieben - verschiedenfarbige Boxen mit vertiefendem Wissen und Methoden Jederzeit zugreifen: Der Inhalt des Buches steht Ihnen ohne weitere Kosten digital in der Wissensplattform eRef zur Verfügung (Zugangscode im Buch). Mit der kostenlosen eRef App haben Sie zahlreiche Inhalte auch offline immer griffbereit.
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