Dynamics Study of Block Copolymers in Solution and on Surfaces PDF Download

Author: Ming Xie
Publisher:
ISBN:
Category :
Languages : en
Pages : 141

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Author: Ian W. Hamley
Publisher: John Wiley & Sons
ISBN: 0470016973
Category : Technology & Engineering
Languages : en
Pages : 300

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Book Description
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: Nikos Hadjichristidis
Publisher: John Wiley & Sons
ISBN: 0471461342
Category : Technology & Engineering
Languages : en
Pages : 445

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Book Description
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: P. Alexandridis
Publisher: Elsevier
ISBN: 0080527108
Category : Science
Languages : en
Pages : 449

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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: Sidney Michael Kilbey
Publisher:
ISBN:
Category :
Languages : en
Pages : 352

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Author: Ian W. Hamley
Publisher: John Wiley & Sons
ISBN: 0470843357
Category : Technology & Engineering
Languages : en
Pages : 388

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Focuses on recent advances in research on block copolymers, covering chemistry (synthesis), physics (phase behaviors, rheology, modeling), and applications (melts and solutions). Written by a team of internationally respected scientists from industry and academia, this text compiles and reviews the expanse of research that has taken place over the last five years into one accessible resource. Ian Hamley is the world-leading scientist in the field of block copolymer research Presents the recent advances in the area, covering chemistry, physics and applications. Provides a broad coverage from synthesis to fundamental physics through to applications Examines the potential of block copolymers in nanotechnology as self-assembling soft materials

Author: J.D. Andrade
Publisher: Springer Science & Business Media
ISBN: 1468486101
Category : Science
Languages : en
Pages : 480

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This book is intended to provide a fundamental basis for the study of the interaction of polymers with living systems, biochemicals, and with aqueous solutions. The surface chemistry and physics of polymeric materials is a subject not normally covered to any significant extent in classical surface chemistry textbooks. Many of the assumptions of classical surface chemistry are invalid when applied to polymer surfaces. Surface properties of polymers are important in the development of medical devices and diagnostic products. Surface properties are also of vital importance in fields such as adhesion, paints and coatings, polymer-filler interactions, heterogeneous catalysis, composites, and polymers for energy generation. The book begins with a chapter considering the current sources of information on polymer surface chemistry and physics. It moves on to consider the question of the dynamics of polymer surfaces and the implica tions of polymer surface dynamics on all subsequent characterization and interfacial studies. Two chapters are directed toward the question of model polymers for preparing model surfaces and interfaces. Complete treatments of X-ray photoelectron spectroscopy and attenuated total reflection infrared spectroscopy are given. There is a detailed treatment of the contact angle with particular emphasis on contact angle hysteresis in aqueous systems, followed by chapters on interfacial electrochemistry and interface acid-base charge-transfer properties. The very difficult problem of block and graft copolymer surfaces is also discussed. The problem of theoretical calculations of surface and interfacial tensions is presented. Raman spectroscopy is considered as an analytical technique for polymer surface characterization.

Author: Chang Yeol Ryu
Publisher:
ISBN:
Category :
Languages : en
Pages : 586

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Author: Victor F. Man
Publisher:
ISBN:
Category : Block copolymers
Languages : en
Pages : 658

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 4

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Deuterium NMR relaxation measurements have been used to probe the dynamics of specifically labelled Poly(styrene-co-vinyl pyridine) in solution and on silica. Of particular interest in this study was the comparison of the dynamics of the adsorbed polymers on silica with those of the block copolymer and homopolymer in solution. We found that in toluene, the styrene segments on the surface-bound polymer had enhanced mobility over that in toluene solution, This enhanced mobility does not extend to the other solvent systems tested (CCl4 and CCl4/CH3OH). For the latter systems, the styrene mobility on the surface bound-polymer was lower than those of the corresponding solutions, as expected. Thus we conclude that this enhanced mobility probably occurs only in the presence of thermodynamically good solvents for styrene. A comparison of lower molecular weight (10 kg/mol) block copolymer and styrene homopolymer were also made in toluene. These results were interpreted through the use of the Hall- Helfand model for chain dynamics as indicating limited aggregation of the block copolymer in solution. Dynamics, Block copolymers, NMR, Polymeric micelles.