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Polymer-Mediated Phase Stability of Colloids

Polymer-Mediated Phase Stability of Colloids
Author: Álvaro González García
Publisher: Springer Nature
Total Pages: 151
Release: 2019-10-28
Genre: Science
ISBN: 3030336832

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Colloid–polymer mixtures are subject of intensive research due to their wide range of applicability, for instance in coatings and food-stuffs. This thesis constitutes a fundamental investigation towards a better control over the stability of such suspensions. Through the chapters, different key parameters governing the stability of colloid–polymer mixtures are explored. How the colloid (pigment) shape and the effective polymer-colloid affinity modulate the stability of the suspension are examples of these key parameters. Despise the mostly theoretical results presented, the thesis is written in a format accessible to a broad scientific audience. Some of the equations of state presented might of direct use to experimentalists. Furthermore, new theoretical insights about colloid–polymer mixtures are put forward. These include four-phase coexistences in effective two-component, quantification of depletant partitioning at high colloidal concentrations, multiple re-entrant phase behaviour of the colloidal fluid–solid coexistence, and a condition where polymers are neither depleted nor adsorbed from/to the colloidal surface.


Colloids and the Depletion Interaction

Colloids and the Depletion Interaction
Author: Henk N.W. Lekkerkerker
Publisher: Springer
Total Pages: 245
Release: 2011-05-23
Genre: Science
ISBN: 9400712235

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Colloids are submicron particles that are ubiquitous in nature (milk, clay, blood) and industrial products (paints, drilling fluids, food). In recent decades it has become clear that adding depletants such as polymers or small colloids to colloidal dispersions allows one to tune the interactions between the colloids and in this way control the stability, structure and rheological properties of colloidal dispersions. This book offers a concise introduction to the fundamentals of depletion effects and their influence on the phase behavior of colloidal dispersions. Throughout the book, conceptual explanations are accompanied by experimental and computer simulation results. From the review by Kurt Binder: "They have succeeded in writing a monograph that is a very well balanced compromise between a very pedagogic introduction, suitable for students and other newcomers, and reviews of the advanced research trends in the field. Thus each chapter contains many and up to date references, but in the initial sections of the chapters, there are suggested exercises which will help the interested reader to recapitulate the main points of the treatment and to deepen his understanding of the subject. Only elementary knowledge of statistical thermodynamics is needed as a background for understanding the derivations presented in this book; thus this text is suitable also for advanced teaching purposes, useful of courses which deal with the physics for soft condensed matter. There does not yet exist any other book with a similar scope..... The readability of this book is furthermore enhanced by a list of symbols, and index of keywords, and last not least by a large number of figures, including many pedagogic sketches which were specifically prepared for this book. Thus, this book promises to be very useful for students and related applied sciences alike." Eur. Phys. J. E (2015) 38: 73


Colloids and the Depletion Interaction

Colloids and the Depletion Interaction
Author: Henk N. W. Lekkerkerker
Publisher: Springer Nature
Total Pages: 400
Release:
Genre:
ISBN: 3031521315

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Geometry and Phase Transitions in Colloids and Polymers

Geometry and Phase Transitions in Colloids and Polymers
Author: William Kung
Publisher: World Scientific
Total Pages: 214
Release: 2009
Genre: Science
ISBN: 9812834974

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This monograph represents an extension of the author''s original PhD thesis and includes a more thorough discussion on the concepts and mathematics behind his research works on the foam model, as applied to studying issues of phase stability and elasticity for various non-closed packed structures found in fuzzy and colloidal crystals, as well as on a renormalization-group analysis regarding the critical behavior of loop polymers upon which topological constraints are imposed. The common thread behind these two research works is their demonstration of the importance and effectiveness of utilizing geometrical and topological concepts for modeling and understanding soft systems undergoing phase transitions.


Polymer Colloids

Polymer Colloids
Author: Rodney Priestley
Publisher: Royal Society of Chemistry
Total Pages: 442
Release: 2019-12-02
Genre: Science
ISBN: 1788014170

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Academic and industrial research around polymer-based colloids is huge, driven both by the development of mature technologies, e.g. latexes for coatings, as well as the advancement of new materials and applications, such as building blocks for 2D/3D structures and medicine. Edited by two world-renowned leaders in polymer science and engineering, this is a fundamental text for the field. Based on a specialised course by the editors, this book provides the reader with an invaluable single source of reference. The first section describes formation, explaining basic properties of emulsions and dispersion polymerization, microfluidic approaches to produce polymer-based colloids and formation via directed self-assembly. The next section details characterisation methodologies from microscopy and small angle scattering, to surface science and simulations. The final chapters close with applications, including Pickering emulsions and molecular engineering for materials development. A comprehensive guide to polymer colloids, with contributions by leaders in their respective areas, this book is a must-have for researchers and practitioners working across polymers, soft matter and chemical and molecular engineering.


An Introduction to Polymer Colloids

An Introduction to Polymer Colloids
Author: Françoise Candau
Publisher: Springer Science & Business Media
Total Pages: 232
Release: 2012-12-06
Genre: Science
ISBN: 9400905211

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The growth of interest in the subject of Polymer Colloids over the last twenty five years or so has been very large resulting now in major international conferences on an annual basis and many national ones as well. The interest stems not only from the wide range of applications of these materials but also from a curiosity as to the mechanism of formation and their growing use as model particles to investigate fundamental aspects of physics and chemistry. In July 1988 a NATO Advanced Study Institute was held in Strasbourg, France, at the Centre St. Thomas. As an educational introduction to this I nstitute a series of eight lectures was given to cover the fundamental aspects of the subject. These eight lectures have now been compiled into an Introductory Text covering, emulsion poly merization, dispersion polymerization, inverse emulsion polymerization, the morphology of copolymer latices, the colloidal properties of latices, characterization methods and rheology. It is hoped that these will serve a wide audience, undergraduates, graduate-students and research workers, both in industry and academe. The chapters all contain review material up to date at the time of publication. fhe 1988 NATO Advanced Study I nstitute was made possible by a grant from the NATO-AS I programme and the following companies: BASF, Ludwigshafen, West Germany The Dow Chemical Company, Michigan, USA Dow Chemical Rheinwerk GmbH, Rheinmunster, West Germany ICI PLC, Runcorn, England S. C. Johnson and Son Inc., Racine, USA NORSOLOR, Verneuil en Halatte, France Rhone Poulenc, Aubervilliers, France.


Modeling Polymer-colloid Phase Behavior

Modeling Polymer-colloid Phase Behavior
Author: Naa Larteokor Quarcoo
Publisher:
Total Pages: 152
Release: 2007
Genre:
ISBN: 9789512913305

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Here, we investigate the phase behavior of silica colloids in solution with two uncharged polymers, polyethylene oxide (PEO) and polyvinylpyrrolidone (PVP), with the values of Rg/R = 0.7 and 1.8 for each polymer. The four observed phase boundaries are related to the polymer characteristics of Rg and entanglement concentration (c*). The polymer properties were characterized by viscometry, light scattering and size exclusion chromatography. The experimental observations suggest that phase separation depends on the ratio of the polymer concentration to the entanglement concentration for a given polymer.


Polymer Colloids

Polymer Colloids
Author: R. Buscall
Publisher: Springer
Total Pages: 344
Release: 1985-01-31
Genre: Science
ISBN:

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