Download or read book The Relationship Between the Chemical Structure of High Polymers and the Glass Transition Temperature written by Tsung-nêng Chʻi and published by . This book was released on 1967 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The relationship between the chemical structure of high polymers and the glass transition temperature by Qi Zong neng written by Qi Zong-neng and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationship Between the Glass Transition Temperature and the Chemical Structure of Polymers written by R. Becker and published by . This book was released on 1982 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Properties of Polymers written by A.A. Askadski and published by CRC Press. This book was released on 1996-12-03 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a problem in determining the physical properties of polymers and thus makes it difficult to tackle the question of the synthesis of polymers with desired properties.
Download or read book Structure Property Relationships of Polymeric Solids written by Anne Hiltner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a collection of original research papers which were presented in honor of the Bordon Award recipient, Professor Eric Baer, on the occasion of the 55th Meeting of the American Chemical Society (Atlanta, Georgia, March, 1981). The contributors are present or former colleagues and students who have worked with him in the Department of Macromolecular Science at Case Institute of Technology of Case Western Reserve University. Throughout his work, Eric Baer has attempted to find the relation ships of solid state structure and hierarchy to the resultant pro perties from which specific functions are derived. Although he has studied many seemingly unrelated subjects, from irreversible de formation, mechanics and yield processes in amorphous polymeric solids to structural organization and mechanical function of ten don, his unique goal has been to develop models from the real structure that would allow a quantitative description of properties. Today, this area of "microscience" is rapidly expanding as new and sophisticated applications of polymeric materials with multifunc tional properties are emerging from our understanding and control of the solid state. The wide-ranging ideas and the original ity of Professor Baer's contributions have stimulated many new concepts which are now widely accepted in the field of high polymers. The contributions to this volume represent many of the areas which he has explored.
Download or read book Structure Property Relationships in Polymers written by Charles E. Carraher Jr. and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first concern of scientists who are interested in synthetic polymers has always been, and still is: How are they synthesized? But right after this comes the question: What have I made, and for what is it good? This leads to the important topic of the structure-property relations to which this book is devoted. Polymers are very large and very complicated systems; their character ization has to begin with the chemical composition, configuration, and con formation of the individual molecule. The first chapter is devoted to this broad objective. The immediate physical consequences, discussed in the second chapter, form the basis for the physical nature of polymers: the supermolecular interactions and arrangements of the individual macromolecules. The third chapter deals with the important question: How are these chemical and physical structures experimentally determined? The existing methods for polymer characterization are enumerated and discussed in this chapter. The following chapters go into more detail. For most applications-textiles, films, molded or extruded objects of all kinds-the mechanical and the thermal behaviors of polymers are of pre ponderant importance, followed by optical and electric properties. Chapters 4 through 9 describe how such properties are rooted in and dependent on the chemical structure. More-detailed considerations are given to certain particularly important and critical properties such as the solubility and permeability of polymeric systems. Macromolecules are not always the final goal of the chemist-they may act as intermediates, reactants, or catalysts. This topic is presented in Chapters 10 and 11.
Download or read book The Relationships Between Polymers and Glass Transition Temperatures written by O. G. Lewis and published by . This book was released on 1967 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, it has been found that interdependence of the rotations of neighboring bonds is of primary importance to the physical behavior of polymers. Mathematical methods for handling interdependent rotations were developed by Lifson and others for the calculation of characteristic polymer dimensions. The Gibbs-DiMarzio theory of the glass transition in polymers is formulated in such a way that interdependent rotations may be taken into account. Using an empirically estimated value of 0.025 for the free volume fraction at the transition temperature, the Gibbs-DiMarzio theory was fitted to empirically estimated transition temperatures for the n-alkanes, hexane to eicosane. A good fit was obtained with E sub 1 = 768 cal/mole for the energy difference between trans and gauche states, and gauche rotations of opposite sign excluded.
Download or read book Going to Extremes written by National Research Council and published by National Academies Press. This book was released on 2005-10-22 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced polymer matrix composites (PMC) have many advantages such as light weight and high specific strength that make them useful for many aerospace applications. Enormous uncertainty exists, however, in predicting long-term changes in properties of PMCs under extreme environmental conditions, which has limited their use. To help address this issue, the Department of Defense requested a study from the NRC to identify the barriers and limitations to the use of PMCs in extreme environments. The study was to focus on issues surrounding methodologies for predicting long-term performance. This report provides a review of the challenges facing application of PMCs in extreme environments, the current understanding of PMC properties and behavior, an analysis of the importance of data in developing effective models, and recommendations for improving long-term predictive methodologies.
Download or read book Thermodynamic and Kinetic Aspects of the Vitreous State written by S.V. Nemilov and published by CRC Press. This book was released on 2018-01-18 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to logically present the major problems of the vitreous state within the framework of irreversible thermodynamics. Filled with elementary explanations for difficult problems, this easily understood text/reference treats in detail the criteria of glass transition, the peculiarities of relaxing structural parameters, and the Prigogine-Defay ratio. Based on the author's rigorous generalization of the Second Law for non-equilibrium, the book systematizes all known thermodynamic data for glasses and melts. The thermodynamic essence of structural relaxation and memory effects are considered. The viscous flow theories are treated as a constituent of the kinetic description. All theoretical questions are illustrated by comparison of calculations with the experiments for glasses of inorganic and organic nature, with special attention to structural classification. An informative review of modern structural investigations is included. The bibliography follows the history of the main problems from the nineteenth century.
Download or read book Polymer Properties at Room and Cryogenic Temperatures written by Gunther Hartwig and published by Springer Science & Business Media. This book was released on 1995-01-31 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most descriptions of polymers start at room temperature and end at the melting point. This textbook starts at very low temperatures and ends at room temperature. At low temperatures, may processes and relaxations are frozen which allows singular processes or separate relaxations to be studied. At room temperatures, or at the main glass transitions, many processes overlap and the properties are determined by relaxations. At low temperatures, there are temperature ranges with negligible influences by glass transitions. They can be used for investigating so-called basic properties which arise from principles of solid state physics. The chain structure of polymers, however, requires stringent modifications for establishing solid state physics of polymers. Several processes which are specific of polymers, occur only at low temperatures. There are also technological aspects for considering polymers at low temperatures. More and more applications of polymeric materials in low temperature technology appear. Some examples are thermal and electrical insulations, support elements for cryogenic devices, low-loss materials for high frequency equipments. It is hoped that, in addition to the scientific part, a data collection in the appendix may help to apply polymers more intensively in low temperature technology. The author greatly appreciates the contributions by his coworkers of the Kernforschungszentrum Karlsruhe in measurement and discussion of many data presented in the textbook and its appendix. Fruitful disccussions with the colleagues Prof. H. Baur, Prof. S. Hunklinger, Prof. D. Munz and Prof. R.
Download or read book High Pressure Chemistry and Physics of Polymers written by A.L. Kovarskii and published by CRC Press. This book was released on 1994-02-03 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-Pressure Chemistry and Physics of Polymers is devoted to covering all areas of high-pressure polymer materials science. Topics addressed include the synthesis of polymers, changes in reactivity, structural transformations, molecular dynamics, relaxation processes, deformational properties, chemical modification, and the effect of shock waves and shear stresses. The authors' contributions reflect over 60 years of Soviet study in the field of physico-chemistry conducted at the major former Soviet Institutes of Chemical Physics, Organic Chemistry, Polymer Chemistry, and Physical Chemistry. Fundamental topics such as compressibility of polymers, polymerization under pressure, viscoelastic/deformational properties, and polymer modification are discussed with an eye toward materials development for improving physical models and methods of calculating the changing parameters of materials under pressure. The book is a valuable reference to data on mechanisms of physical and chemical processes, in addition to new experimental data for improving physical models and methods of calculating changes in material characteristics under compression loads. High-Pressure Chemistry and Physics of Polymers will be an important reference for graduate students and practicing professionals in polymer chemistry and polymeric materials.
Download or read book PROPERTIES POLYMERS 3RD COMPL REV written by Dirk Willem Krevelen and published by Elsevier. This book was released on 1990-12-17 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. As a source of data and for estimations of properties to be expected this book is now widely used all over the world. This Third Edition is thoroughly revised and updated. Its objectives, as for the previous two editions, are to correlate properties with chemical structure and to describe methods that permit the estimation and prediction of numerical properties from chemical structure, i.e. nearly all properties of the solid, liquid and dissolved states of polymers.New are chapters and sub-chapters discussing extended chain polymers, liquid crystal polymers and high performance polymers, De Gennes' scaling concept of polymer solutions, physical ageing, acoustic properties, the dual-mode permeation theory, the decomposition temperature and polymer reinforcing constructions. The chapters and sub-chapters on molecular mass distribution, glass and crystalline-melt temperatures, equations of state and on failure mechanisms have been greatly extende
Download or read book High temperature Properties and Applications of Polymeric Materials written by Martin R. Tant and published by . This book was released on 1995 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents information on the synthesis, processing, and characterization of polymers and polymer composites for high performance materials needing to withstand high temperatures. Discusses the synthesis and properties of new thermally stable polymers. Includes new approaches for modeling material processing and decomposition. Provides a broad perspective by examining the science and engineering aspects of polymeric materials for high-temperature applications.
Download or read book Polymer Physics written by U.W. Gedde and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of my teaching efforts during the last ten years at the Royal Institute of Technology. The purpose is to present the subject of polymer physics for undergraduate and graduate students, to focus the fundamental aspects of the subject and to show the link between experiments and theory. The intention is not to present a compilation of the currently available literature on the subject. Very few reference citations have thus been made. Each chapter has essentially the same structure: starling with an introduction, continuing with the actual subject, summarizing the chapter in 30D-500 words, and finally presenting problems and a list of relevant references for the reader. The solutions to the problems presented in Chapters 1-12 are given in Chapter 13. The theme of the book is essentially polymer science, with the exclusion of that part dealing directly with chemical reactions. The fundamentals in polymer science, including some basic polymer chemistry, are presented as an introduction in the first chapter. The next eight chapters deal with different phenomena (processes) and states of polymers. The last three chapters were written with the intention of making the reader think practically about polymer physics. How can a certain type of problem be solved? What kinds of experiment should be conducted? This book would never have been written without the help of my friend and adviser, Dr Anthony Bristow, who has spent many hours reading through the manuscript. criticizing the content.
Download or read book Polymers and Their Properties Fundamentals of structure and mechanics written by J. W. S. Hearle and published by Ellis Horwood. This book was released on 1982 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grady, a transgendered high school student, yearns for acceptance by his classmates and family as he struggles to adjust to his new identity as a male.
Download or read book The Glass Transition written by E. Donth and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes and interrelates the following processes: cooperative alpha processes in a cold liquid, structural relaxation in the glass near Tg, the Johari-Goldstein beta process, the Williams-Götze process in a warm liquid, fast nonactivated cage rattling and boson peak, and ultraslow Fischer modes.
Download or read book Polymer Science Study Guide written by Gerald S. Kirshenbaum and published by CRC Press. This book was released on 1973 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
