The Chemical Structure and Thermal Characteristics of Polymers PDF Download

Author: Vasiliĭ Vladimirovich Korshak
Publisher: Israel Program of Scientific Translations
ISBN:
Category : Science
Languages : en
Pages : 474

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Author: V. V. Korshak
Publisher: Halsted Press
ISBN: 9780470504253
Category :
Languages : en
Pages : 460

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Book Description

Author: D.W. van Krevelen
Publisher: Elsevier
ISBN: 0444596127
Category : Technology & Engineering
Languages : en
Pages : 898

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Book Description
Properties of Polymers: Their Correlation with Chemical Structure; Their Numerical Estimation and Prediction from Additive Group Contributions summarizes the latest developments regarding polymers, their properties in relation to chemical structure, and methods for estimating and predicting numerical properties from chemical structure. In particular, it examines polymer electrical properties, magnetic properties, and mechanical properties, as well as their crystallization and environmental behavior and failure. The rheological properties of polymer melts and polymer solutions are also considered. Organized into seven parts encompassing 27 chapters, this book begins with an overview of polymer science and engineering, including the typology of polymers and their properties. It then turns to a discussion of thermophysical properties, from transition temperatures to volumetric and calorimetric properties, along with the cohesive aspects and conformation statistics. It also introduces the reader to the behavior of polymers in electromagnetic and mechanical fields of force. The book covers the quantities that influence the transport of heat, momentum, and matter, particularly heat conductivity, viscosity, and diffusivity; properties that control the chemical stability and breakdown of polymers; and polymer properties as an integral concept, with emphasis on processing and product properties. Readers will find tables that give valuable (numerical) data on polymers and include a survey of the group contributions (increments) of almost every additive function considered. This book is a valuable resource for anyone working on practical problems in the field of polymers, including organic chemists, chemical engineers, polymer processers, polymer technologists, and both graduate and PhD students.

Author: Charles E. Carraher Jr.
Publisher: Springer Science & Business Media
ISBN: 1468447483
Category : Science
Languages : en
Pages : 234

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Book Description
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.

Author: Bernhard Wunderlich
Publisher: Springer Science & Business Media
ISBN: 9783540236290
Category : Science
Languages : en
Pages : 918

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Book Description
Table of Contents Table of Contents 1 Atoms, small, and large molecules 2 Basics of thermal analysis 3 Dynamics of chemical and phase changes 4 Thermal analysis tools 5 Structure and properties of materials 6 Single component materials 7 Multiple component materials App. A.1 Table of thermal properties of linear macromolecules and related small molecules - the ATHAS data bank App. A.2 Radiation scattering App. A.3 Derivation of the Rayleigh ratio App. A.4 Neural network predictions App. A.5 Legendre transformations, Maxwell relations, linking of entropy and probability, and derivation of (dS/dT) App. A.6 Boltzmann distribution, harmonic vibration, complex numbers, and normal modes App. A.7 Summary of the basic kinetics of chemical reactions App. A.8 The ITS 1990 and the Krypton-86 length standard App. A.9 Development of classical DTA to DSC App. A.10 Examples of DTA and DSC under extreme conditions App. A.11 Description of an online correction of the heat-flow rate App. A.12 Derivation of the heat-flow equations App. A.13 Description of sawtooth-modulation response App. A.14 An introduction to group theory, definitions of configurations and conformations, and a summary of rational and irrational numbers App. A.15 Summary of birefringence and polarizing microscopy App. A.16 Summary of X-ray diffraction and interference effects App. A.17 Optical analog of electron double diffraction to produce Moire patterns.

Author: Vasilii Vladimirovich Korshak
Publisher:
ISBN:
Category :
Languages : en
Pages : 562

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Book Description
Data is given on the relation between heat resistance and thermosta-bility of polymers and their chemical structure. Special emphasis is given to those features of polymer structure which can increase the thermal characteristics of polymers, an urgent problem in the field of polymer chemistry, in order to meet the demand for materials capable of functioning for long periods of time at elevated tempera-tures. (Author, modified-PL).

Author: W.M. Groenewoud
Publisher: Elsevier
ISBN: 0080528937
Category : Technology & Engineering
Languages : en
Pages : 407

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Book Description
Thermal Analysis (TA) has become an indispensable family of analytical techniques in the polymer research. The increased importance of these techniques can be seen as the result of three more or less parallel developments:• a tempestuous development of TA measuring techniques in combination with a high degree of automation,• the strongly increased understanding of the underlaying theory and,• the increasing knowledge of the relation between the polymers' chemical structure and their physical properties.These areas are still in their developmental stages, especially the third area. The increasing knowledge of the dependence of physical properties on chemical structure just accentuated more and more the need for accurate thermoanalytical measurements, and this knowledge is very important for the first stages of the development of new polymeric systems. Besides, the contribution of TA remains necessary for the technical and commercial development of such a new polymer system. The use of the various TA techniques in these processes is described in this book in nine chapters, while chapter ten illustrates the information obtained about different polymers during special case studies.This book illustrates in this way, applications of a wide variety of TA techniques whilst it is written from a materials characterisation rather than from a TA point of view with attention being paid to the chemical structure/physical properties correlations.

Author: Laurence W. McKeen
Publisher: William Andrew
ISBN: 0323188931
Category : Science
Languages : en
Pages : 291

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Book Description
This reference guide brings together a wide range of essential data on the effect of long term thermal exposure on plastics and elastomers, enabling engineers to make optimal material choices and design decisions. The data is supported by explanations of how to make use of the data in real-world engineering contexts. High heat environments are common in automotive, oil and gas, household appliances, coatings, space and aeronautics and many more end uses. As a result, thermal stability data are critically important to engineers designing parts particularly that replace metals, work that is common today as they look for ways to reduce weight. The data tables in this book enable engineers and scientists to select the right materials for a given product or application across a wide range of sectors. Several polymer classes are covered, including polyolefins, polyamides, polyesters, elastomers, fluoropolymers, biodegradable plastics and more, saving readers the need to contact suppliers. The book also includes introductory sections to provide background on plastic/polymer chemistry and formulation and plastic testing methods, providing the knowledge required to make best use of the data. Essential data and practical guidance for engineers and scientists working with plastics for use in high temperature environments Includes introductory chapters on polymer chemistry and its effect on thermal stability, providing the underpinning knowledge required to utilize the data Covers a wide range of commercial polymer classes, saving readers the need to contact suppliers

Author: T. R Crompton
Publisher: Smithers Rapra
ISBN: 1847355153
Category : Science
Languages : en
Pages : 226

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Book Description
In recent years numerous research papers have been published on the changes in chemical structure and in physical properties of polymers when they are exposed to heat over a range of temperatures. For example, these changes can occur at any time during the injection moulding of the plastic, in the subsequent processing and in its end-use application when exposed to elevated temperatures. Thermal stability is a very important parameter which must be taken into account when selecting polymers whether for their use as constructional or engineering applications or in the packaging of food at high temperatures. The mechanisms by which such changes occur are many and it is important to know what these are and to be able to measure the rate of change of polymer structure and its dependence on temperature and time. Development of an understanding of the mechanisms of thermal degradation will help the chemist to develop materials with better thermal stability. This is particularly important in newer developments in engineering and aerospace. This book reviews in nine chapters the measurement of these properties in the main types of polymers in use today. Numerous techniques are discussed ranging from thermogravimetric analysis, differential scanning calorimetry, infrared and nuclear magnetic resonance based methods to pyrolytic techniques such as those based on pyrolysis, gas chromatography and mass spectrometry. The book is aimed at those engaged in the manufacture of polymers and the development of end-use applications. It is essential that students of polymer science should have a thorough understanding of polymer stability and an additional aim of the book is to help in the development of such an interest.

Author: Wiley
Publisher: John Wiley & Sons
ISBN: 0470233001
Category : Technology & Engineering
Languages : en
Pages : 987

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Book Description
Based on Wiley's renowned Encyclopedia of Polymer Science and Technology, this book provides coverage of key methods of characterization of the physical and chemical properties of polymers, including atomic force microscopy, chromatographic methods, laser light scattering, nuclear magnetic resonance, and thermal analysis, among others. Written by prominent scholars from around the world, this reference presents over twenty-five self -contained articles on the most used analytical techniques currently practiced in polymer science.