Molecular Aspects of the Characterization of Polymer Networks
Author: G. Heinrich
Publisher:
Published: 1982
Total Pages: 12
ISBN-13:
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Molecular Characterization of Polymer Networks Tips
Author: Galiatsatos
Publisher: 20230101
Published: 2023
Total Pages: 0
ISBN-13: 9780195099775
DOWNLOAD EBOOKSynthesis, Characterization, and Theory of Polymeric Networks and Gels
Author: Shaul M. Aharoni
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 354
ISBN-13: 1461530164
DOWNLOAD EBOOKPolymer science is a technology-driven science. More often than not, technological breakthroughs opened the gates to rapid fundamental and theoretical advances, dramatically broadening the understanding of experimental observations, and expanding the science itself. Some of the breakthroughs involved the creation of new materials. Among these one may enumerate the vulcanization of natural rubber, the derivatization of cellulose, the giant advances right before and during World War II in the preparation and characterization of synthetic elastomers and semi crystalline polymers such as polyesters and polyamides, the subsequent creation of aromatic high-temperature resistant amorphous and semi-crystal line polymers, and the more recent development of liquid-crystalline polymers mostly with n~in-chain mesogenicity. other breakthroughs involve the development of powerful characterization techniques. Among the recent ones, the photon correlation spectroscopy owes its success to the advent of laser technology, small angle neutron scattering evolved from n~clear reactors technology, and modern solid-state nuclear magnetic resonance spectroscopy exists because of advances in superconductivity. The growing need for high modulus, high-temperature resistant polymers is opening at present a new technology, that of more or less rigid networks. The use of such networks is rapidly growing in applications where they are used as such or where they serve as matrices for fibers or other load bearing elements. The rigid networks are largely aromatic. Many of them are prepared from multifunctional wholly or almost-wholly aromatic kernels, while others contain large amount of stiff difunctional residus leading to the presence of many main-chain "liquid-crystalline" segments in the "infinite" network.
Polymer Networks
Author: A. Chompff
Publisher: Springer Science & Business Media
Published: 2013-06-29
Total Pages: 494
ISBN-13: 1475762100
DOWNLOAD EBOOKFor several decades, polymer science has sought to rationalize the mechanical and thermodynamic properties of polymer networks largely within the framework of statistical thermodynamics. Much of this effort has been directed toward the rubbery rather than the glassy state. It is generally assumed that networks possess an av erage composition to which average properties may be assigned; from such a continuum view, a powerful analysis of such properties as modulus, swelling, birefringence and thermoelasticity has emerged. In the years following the rise of polymer characterization (the late 40's and early 50's), many scientists began to study ap parent relations between the properties of linear polymer molecules and the networks obtainable therefrom. This search was also stimu lated by the wide range of applications of polymer networks in com mercial elastomers, thermosets and coatings. Frequently, these data were confidently matched with curves obtained from statisti cally describable models of networks of ghost chains, uniformly distributed in space. More recently, it has become apparent that polymer chains in networks are not as ideal as assumed in the formulation of statis tical models, and there has been a shift in emphasis towards the less than ideal, perturbed and possibly inhomogeneous networks which are more frequently encountered in practice. The continuum approach, however, had to be developed before inhomogeneous systems could be described; the present volume, therefore, contains both views.
Molecular Characterization of Polymers
Author: Muhammad Imran Malik
Publisher: Elsevier
Published: 2021-03-09
Total Pages: 670
ISBN-13: 012822598X
DOWNLOAD EBOOKMolecular Characterization of Polymers presents a range of advanced and cutting-edge methods for the characterization of polymers at the molecular level, guiding the reader through theory, fundamentals, instrumentation, and applications, and supporting the end goal of efficient material selection and improved material performance. Each chapter focuses on a specific technique or family of techniques, including the different areas of chromatography, field flow fractionation, long chain branching, static and dynamic light scattering, mass spectrometry, NMR, X-Ray and neutron scattering, polymer dilute solution viscometry, microscopy, and vibrational spectroscopy. In each case, in-depth coverage explains how to successfully implement and utilize the technique. This practical resource is highly valuable to researchers and advanced students in polymer science, materials science, and engineering, and to those from other disciplines and industries who are unfamiliar with polymer characterization techniques. Introduces a range of advanced characterization methods, covering aspects such as molecular weight, polydispersity, branching, composition, and tacticity Enables the reader to understand and to compare the available technique, and implement the selected technique(s), with a view to improving properties of the polymeric material Establishes a strong link between basic principles, characterization techniques, and real-life applications
Molecular Characterization and Analysis of Polymers
Author: John M. Chalmers
Publisher: Elsevier
Published: 2008-12-09
Total Pages: 784
ISBN-13: 0080932045
DOWNLOAD EBOOKWritten by expert contributors from the academic and industrial sectors, this book presents traditional and modern approaches to polymer characterization and analysis. The emphasis is on pragmatics, problem solving and property determination; real-world applications provide a context for key concepts. The characterizations focus on organic polymer and polymer product microstructure and composition. Approaches molecular characterization and analysis of polymers from the viewpoint of problem-solving and polymer property characterization, rather than from a technique championing approach Focuses on providing a means to ascertaining the optimum approach or technique(s) to solve a problem/measure a property, and thereby develop an analytical competence in the molecular characterization and analysis of real-world polymer products Provides background on polymer chemistry and microstructure, discussions of polymer chain, morphology, degradation, and product failure and additive analysis, and considers the supporting roles of modeling and high-throughput analysis
Polymer Structure Characterization
Author: Richard A Pethrick
Publisher: Royal Society of Chemistry
Published: 2015-10-20
Total Pages: 493
ISBN-13: 1782625593
DOWNLOAD EBOOKThe different physical properties displayed by low molar mass organic materials and polymers are a result of their molecular organisation. In order to understand the structure – property relationship of a material it is necessary to first look at the interactions at a molecular level. This new edition of Polymer Structure Characterization provides readers with the background needed to understand the factors that influence molecular organization and how this affects the morphology and bulk physical properties of a material. In order to introduce the concepts, the book first looks at small molecular systems and builds up to complex macromolecular systems. The second edition has been fully revised and updated to include new examples and references. Topics covered include: organic crystals, liquid crystals, plastic crystals, polymer crystal growth, amorphous glassy materials, polymer surfaces and interfaces, colloids and molecular organization in liquids as well as two new chapters on self-assembly and biopolymer systems. The book is intended to provide complimentary material for a range of undergraduate and postgraduate courses in materials science, molecular chemistry and chemical physics. In addition to polymer and material scientists, the book would also be of interest to chemists and physicists studying the properties of organic materials.
Molecular Recognition and Polymers
Author: Vincent Rotello
Publisher: John Wiley & Sons
Published: 2008-09-15
Total Pages: 492
ISBN-13: 0470384042
DOWNLOAD EBOOKState-of-the-art techniques for tapping the vast potential of polymers The use of specific non-covalent interactions to control polymer structure and properties is a rapidly emerging field with applications in diverse disciplines. Molecular Recognition and Polymers covers the fundamental aspects and applications of molecular recognition—in the creation of novel polymeric materials for use in drug delivery, sensors, tissue engineering, molecular imprinting, and other areas. This reference begins by explaining the fundamentals of supramolecular polymers; it progresses to cover polymer formation and self-assembly with a wide variety of examples, and then includes discussions of biomolecular recognition using polymers. With chapters contributed by the foremost experts in their fields, this resource: Provides an integrated resource for supramolecular chemistry, polymer science, and interfacial science Covers advanced, state-of-the-art techniques used in the design and characterization of non-covalent interactions in polymers Illustrates how to tailor the properties of polymeric materials for various applications Stand-alone chapters address specific applications independently for easy reference. This is a premier resource for graduate students and researchers in polymer chemistry, supramolecular chemistry, materials science, and physical organic chemistry.
Polymeric Liquids and Networks
Author: William Walter Graessley
Publisher: Taylor & Francis
Published: 2004
Total Pages: 559
ISBN-13: 9780815341697
DOWNLOAD EBOOKPolymeric Liquids and Networks: Structure and Properties is the first book of two by William W. Graessley that presents a unified view of flexible-chain polymer liquids and networks. The topics of both volumes range from equilibrium properties to dynamic response, finite deformation behavior and non-Newtonian flow. The second book will be titled Polymeric Liquids and Networks: Dynamics and Rheology. These various aspects of the field were developed over the past 70 years by researchers from many academic disciplines. The infusion of fresh viewpoints continually invigorated and enriched the field, making polymeric liquids and networks a truly interdisciplinary subject. The lack of a common terminology and perspective, however, has led to compartmentalization, making it difficult for a newcomer, even one technically trained, to gain a broad appreciation of the field and to see the relationships among its various parts. The aim of these two books, without diluting the substance, is to achieve a desired unity. Polymeric Liquids and Networks emphasizes fundamental principles and a molecular viewpoint. The conceptual basis of theories underlying each topical area is explained with derivations sometimes outlined briefly and sometimes given in detail. Technical terminology is kept to a minimum necessary for coherent presentation. The goal of the text is to provide an informed understanding rather than detailed technical proficiency. Theory, experiment, and simulation are woven together as appropriate for achieving a balanced view. The books are designed to serve academic and industrial needs, consolidating the understanding of topics with both practical and fundamental significance, and written from a technical but non-specialized perspective. The books deal mainly with non-polar and weakly polar species and largely with results derived from experiments on structurally well-defined systems. The objective is not to ignore the more complex systems, which are pervasive in both nature and industry and important in their own right. Much space is devoted to structural distributions, their characterization and their effect on properties. It is rather to provide a framework for better understanding of all polymeric liquids by identifying, in the simplest possible circumstances, the universal attributes of a chain-like and flexible molecular structure.
Biological and Synthetic Polymer Networks
Author: O. Kramer
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 536
ISBN-13: 9400913435
DOWNLOAD EBOOKBiological and Synthetic Polymer Networks contains 36 papers selected from the papers presented at NETWORKS 86, the 8th Polymer Networks Group Meeting. NETWORKS 86 was held in Elsinore, Denmark, on 31 August 5 September 1986. A total of nine invited main lectures and 68 contributed papers were presented at the meeting. A wide range of important biological and synthetic materials consist of three-dimensional polymer networks. The properties range from very stiff structural materials to extremely flexible rubbery materials and gels. Most polymer networks are permanent networks held together by covalent bonds. Such networks are insoluble but they may swell considerably in good solvents. Polymer networks held together by ionic bonds, hydrogen bonds or so-called entanglements are of a more temporary nature. At long times they exhibit a tendency to flow, and they are soluble in good solvents. The paper by Professor Walther Burchard and his co-workers, 'Covalent, Thermoreversible and Entangled Networks: An Attempt at Comparison', serves as a general introduction to polymer networks. The book contains both theoretical and experimental papers on the formation, characterisation and properties of polymer networks. Two topics were given special sessions at the meeting, namely Biological Networks and Swelling of Polymer Networks.
