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Author : Liat Laufer
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (129 download)
Download or read book Amphiphilic Block Copolymers at the Oil/water Interface written by Liat Laufer and published by . This book was released on 2013 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mor Armon
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (129 download)
Download or read book Dynamics and Rheological Behavior of Amphiphilic Block Copolymers at the Oil/water Interface written by Mor Armon and published by . This book was released on 2015 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P. Alexandridis
Publisher : Elsevier
ISBN 13 : 0080527108
Total Pages : 449 pages
Book Rating : 4.0/5 (85 download)
Download or read book Amphiphilic Block Copolymers written by P. Alexandridis and published by Elsevier. This book was released on 2000-10-18 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is the belief of the editors of this book that the recognition of block copolymers as being amphiphilic molecules and sharing common features with other well-studied amphiphiles will prove beneficial to both the surfactant and the polymer communities. An aim of this book is to bridge the two communities and cross-fertilise the different fields. To this end, leading researchers in the field of amphiphilic block copolymer self-assembly, some having a background in surfactant chemistry, and others with polymer physics roots, have agreed to join forces and contribute to this book.The book consists of four entities. The first part discusses theoretical considerations behind the block copolymer self-assembly in solution and in the melt. The second part provides case studies of self-assembly in different classes of block copolymers (e.g., polyethers, polyelectrolytes) and in different environments (e.g., in water, in non-aqueous solvents, or in the absence of solvents). The third part presents experimental tools, ranging from static (e.g., small angle neutron scattering) to dynamic (e.g., rheology), which can prove valuable in the characterization of block copolymer self-assemblies. The fourth part offers a sampling of current applications of block copolymers in, e.g., formulations, pharmaceutics, and separations, applications which are based on the unique self-assembly properties of block copolymers.
Author : Brian R. Rochford
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (596 download)
Download or read book Organisation and Dynamics of an Amphiphilic Block Copolymer at the Air/water Interface written by Brian R. Rochford and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jinhye Bae
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (93 download)
Download or read book Assembly and Deformation of Amphiphilic Copolymers and Networks at Fluid Interfaces written by Jinhye Bae and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface tension generally plays a negligible role on macroscopic scales, but it is often the dominant force on nanometer to micrometer length-scales. The efforts of this dissertation are mainly focused on understanding the role that surface tension plays on sub-millimeter scale objects, especially on soft material systems, and how to utilize this phenomenon to assemble and deform objects. This dissertation addresses several phenomena of nano-and micron-sized objects at fluid interfaces. For nano-scale objects, amphiphilic block copolymer chains were used to explore interfacial behaviors due to their enhanced stability, mechanical properties, and tunability compared to other interfacially active materials such as small molecule surfactants or lipids. We investigate the tailoring of amphiphilic block copolymer assemblies through deformation at the oil/water interface by inducing interfacial instabilities to incorporate inorganic nanoparticles into micelles (chapter 2) or by controlling osmotic stresses to prepare multi-compartment emulsions and capsules (chapter 3). Next, we utilize photo-crosslinkable and temperature-responsive copolymer networks (i.e., thin hydrogel sheets) with simple to complex geometries as micro-scale soft objects. Competition between surface energy and elastic bending energy allows us to quantitatively characterize elastic properties of crosslinked thin hydrogel sheets in micron dimensions by using surface tension of liquids (chapter 4). In addition, we have found significant edge imperfections due to the finite resolution of the photo-lithographic patterning method by observation of interfacial deformations. We employ the edge imperfections to drive the buckling of narrow photo-crosslinkable hydrogel ribbons (chapter 5). Lastly, we introduce a new concept of capillary assembly of soft hydrogel sheets with various geometries. This study allows us to examine correlations between elastic properties and surface tension, as well as capillary interactions between soft materials which can be extended to more complex multi-polar interface deformation (chapter 6).
Author : Patrizio Raffa
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110640430
Total Pages : 277 pages
Book Rating : 4.1/5 (16 download)
Download or read book Chemical Enhanced Oil Recovery written by Patrizio Raffa and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-07-22 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims at presenting, describing, and summarizing the latest advances in polymer flooding regarding the chemical synthesis of the EOR agents and the numerical simulation of compositional models in porous media, including a description of the possible applications of nanotechnology acting as a booster of traditional chemical EOR processes. A large part of the world economy depends nowadays on non-renewable energy sources, most of them of fossil origin. Though the search for and the development of newer, greener, and more sustainable sources have been going on for the last decades, humanity is still fossil-fuel dependent. Primary and secondary oil recovery techniques merely produce up to a half of the Original Oil In Place. Enhanced Oil Recovery (EOR) processes are aimed at further increasing this value. Among these, chemical EOR techniques (including polymer flooding) present a great potential in low- and medium-viscosity oilfields. • Describes recent advances in chemical enhanced oil recovery. • Contains detailed description of polymer flooding and nanotechnology as promising boosting tools for EOR. • Includes both experimental and theoretical studies. About the Authors Patrizio Raffa is Assistant Professor at the University of Groningen. He focuses on design and synthesis of new polymeric materials optimized for industrial applications such as EOR, coatings and smart materials. He (co)authored about 40 articles in peer reviewed journals. Pablo Druetta works as lecturer at the University of Groningen (RUG) and as engineering consultant. He received his Ph.D. from RUG in 2018 and has been teaching at a graduate level for 15 years. His research focus lies on computational fluid dynamics (CFD).
Author :
Publisher : Cuvillier Verlag
ISBN 13 : 3736920229
Total Pages : 150 pages
Book Rating : 4.7/5 (369 download)
Download or read book Interactions of an Antimicrobial Peptaibol with Amphiphilic Block Copolymers written by and published by Cuvillier Verlag. This book was released on 2006-10-13 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Inbal Preker
Publisher :
ISBN 13 :
Total Pages : 246 pages
Book Rating : 4.:/5 (827 download)
Download or read book Block Copolymers as Surface Active Agents at the Oil-water Interface written by Inbal Preker and published by . This book was released on 2011 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tobias Foster
Publisher : Cuvillier Verlag
ISBN 13 : 3867271151
Total Pages : 244 pages
Book Rating : 4.8/5 (672 download)
Download or read book Microemulsions as Compartmentalised Reaction Media: Structural Characterisation of Water-in-oil Microemulsions written by Tobias Foster and published by Cuvillier Verlag. This book was released on 2007 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gareth G. Hougham
Publisher : Springer Science & Business Media
ISBN 13 : 0306469189
Total Pages : 338 pages
Book Rating : 4.3/5 (64 download)
Download or read book Fluoropolymers 1 written by Gareth G. Hougham and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fluorine atom, by virtue of its electronegativity, size, and bond strength with carbon, can be used to create compounds with remarkable properties. Small molecules containing fluorine have many positive impacts on everyday life of which blood substitutes, pharmaceuticals, and surface modifiers are only a few examples. Fluoropolymers, too, while traditionally associated with extreme hi- performance applications have found their way into our homes, our clothing, and even our language. A recent American president was often likened to the tribology of PTFE. Since the serendipitous discovery of Teflon at the Dupont Jackson Laboratory in 1938, fluoropolymers have grown steadily in technological and marketplace importance. New synthetic fluorine chemistry, new processes, and new apprec- tion of the mechanisms by which fluorine imparts exceptional properties all contribute to accelerating growth in fluoropolymers. There are many stories of harrowing close calls in the fluorine chemistry lab, especially from the early years, and synthetic challenges at times remain daunting. But, fortunately, modern techniques and facilities have enabled significant strides toward taming both the hazards and synthetic uncertainties. In contrast to past environmental problems associated with fluorocarbon refrigerants, the exceptional properties of fluorine in polymers have great environmental value. Some fluoropolymers are enabling green technologies such as hydrogen fuel cells for automobiles and oxygen-selective membranes for cleaner diesel combustion.
Author : Nikos Hadjichristidis
Publisher : John Wiley & Sons
ISBN 13 : 0471461342
Total Pages : 445 pages
Book Rating : 4.4/5 (714 download)
Download or read book Block Copolymers written by Nikos Hadjichristidis and published by John Wiley & Sons. This book was released on 2003-04-28 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers may be classified as either homopolymers, consisting of one single repeating unit, or copolymers, consisting of two or more distinct repeating units. Block copolymers contain long contiguous blocks of two or more repeating units in the same polymer chain. Covering one of the hottest topics in polymer chemistry, Block Copolymers provides a coherent overview of the synthetic routes, physical properties, and applications of block copolymers. This pioneering text provides not only a guideline for developing synthetic strategies for creating block copolymers with defined characteristics, but also a key to the relationship between the physical properties of block copolymers and the structure and dynamics of materials. Covering features of the chemistry and physics of block copolymers that are not found in comparable texts, Block Copolymers illustrates the structure-activity relationship of block copolymers and offers suggestions for the design of specific applications. Divided into five sections-Block Copolymers includes chapters on: * Block Copolymers by Chemical Modification of Precursor Polymers * Nonlinear Block Copolymers * Adsorption of Block Copolymers at Solid-Liquid Interfaces * Theory of Block Copolymer Segregation * Phase Transformation Kinetics * Block Copolymer Morphology * Block Copolymer Dynamics Polymer chemists, physicists, chemical engineers, and materials scientists, as well as graduate students in polymer science, will find Block Copolymers to be an invaluable text.
Author : Ian W. Hamley
Publisher : John Wiley & Sons
ISBN 13 : 0470016973
Total Pages : 300 pages
Book Rating : 4.4/5 (7 download)
Download or read book Block Copolymers in Solution written by Ian W. Hamley and published by John Wiley & Sons. This book was released on 2005-12-13 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique text discusses the solution self-assembly of block copolymers and covers all aspects from basic physical chemistry to applications in soft nanotechnology. Recent advances have enabled the preparation of new materials with novel self-assembling structures, functionality and responsiveness and there have also been concomitant advances in theory and modelling. The present text covers the principles of self-assembly in both dilute and concentrated solution, for example micellization and mesophase formation, etc., in chapters 2 and 3 respectively. Chapter 4 covers polyelectrolyte block copolymers - these materials are attracting significant attention from researchers and a solid basis for understanding their physical chemistry is emerging, and this is discussed. The next chapter discusses adsorption of block copolymers from solution at liquid and solid interfaces. The concluding chapter presents a discussion of selected applications, focussing on several important new concepts. The book is aimed at researchers in polymer science as well as industrial scientists involved in the polymer and coatings industries. It will also be of interest to scientists working in soft matter self-assembly and self-organizing polymers.
Author : Sophie Bernard
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (663 download)
Download or read book Behavior of Several Amphiphilic Copolymers at the Air-water Interface written by Sophie Bernard and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Poly(ethylene oxide)-block-Polycaprolactone (PEO-b-PCL) copolymers are also studied in this work. Their behavior and the PCL crystallization process at the air-water interface is investigated using BAM. The formation of crystals directly on the water subphase is illustrated and compared to the pictures obtained by AFM.
Author : Rashid Malek Hamdan
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (787 download)
Download or read book Localization of an Ideal Multi-block Copolymer at a Liquid-liquid Interface written by Rashid Malek Hamdan and published by . This book was released on 2007 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The presence of the copolymers at the interface between two immiscible liquids i s crucial to such processes as emulsion stabilization, wetting and micro-emulsio n formation. For instant, for water-oil interface amphiphilic copolymers, contai ning different fractions of hydrophilic (water soluble) and hydrophobic (oil sol uble) components are used. Due to the different solubilities of its components a copolymer chain tends to adsorb on the liquid-liquid interface, thus stabilizin g the interface by reducing its surface tension. The statistical mechanics of regular blocks copolymer in the symmetric case and the conditions under which it becomes localized at the interface constitute the subject of this work. We use the basic concepts of renormalization to map the pr oblem of the multiblock copolymer near the interface onto that of a homopolymer in the effective potential by considering the repeated moieties as renormalized monomers of a coarse-grained chain. A full comparison with the direct numerical calculations of the partition functi on of the copolymer on a lattice allows us to judge the validity of the renormal ization procedure.
Author : Antonio Stocco
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (198 download)
Download or read book Amphiphilic Block Copolymers at the Liquid Fluid Interface, Investigated by Evanescent Light Scattering and Ellipsometry written by Antonio Stocco and published by . This book was released on 2007 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Lyklema
Publisher : Elsevier
ISBN 13 : 0080457401
Total Pages : 844 pages
Book Rating : 4.0/5 (84 download)
Download or read book Fundamentals of Interface and Colloid Science written by J. Lyklema and published by Elsevier. This book was released on 2005-03-30 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume V is the counterpart of Volume IV and treats hydrophilic colloids and related items. Contains edited contributions on steric stabilization, depletion, polyelectrolytes, proteins at interfaces, association colloids, microemulsions, thin films, foams and emulsions. J. Lyklema is coauthor of two chapters and general editor. Other authors include: G.J. Fleer, F.A.M. Leermakers, M.A. Cohen Stuart, W. Norde, J.A.G. Buijs, J.C. Eriksson, T.Sottmann, R. Strey, D. Platikanov, D. Ekserova, V.Bergeron and P.Walstra. * This volume completes the prestigious series Fundamentals of Interface and Colloid Science* Together with Volume IV this book provides a comprehensive introduction to colloid science.* Explains and elaborates phenomena starting from basic principles and progresses to more advanced topics
Author : Peter A. Williams
Publisher : John Wiley & Sons
ISBN 13 : 0470994193
Total Pages : 344 pages
Book Rating : 4.4/5 (79 download)
Download or read book Handbook of Industrial Water Soluble Polymers written by Peter A. Williams and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural and synthetic water soluble polymers are used in a wide range of familiar industrial and consumer products, including coatings and inks, papers, adhesives, cosmetics and personal care products. They perform a variety of functions without which these products would be significantly more expensive, less effective or both. Written for research, development and formulation chemists, technologists and engineers at graduate level and beyond in the fine and specialty chemicals, polymers, food and pharmaceutical industries, the Handbook of Industrial Water Soluble Polymers deals specifically with the functional properties of both natural and synthetic water soluble polymers. By taking a function based approach, rather than a “polymer specific” approach the book illustrates how polymer structure leads to effect, and shows how different polymer types can be employed to achieve appropriate product properties.
