Download or read book Analytical Methods for Polymers and Their Oxidative By products written by Michael Fielding and published by American Water Works Association. This book was released on 1999 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermo oxidative Degradation of Polymers written by T. R. Crompton and published by Smithers Rapra Technology. This book was released on 2010 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oxidative and thermal degradation of polymers has very important implications on their suitability for particular end-user applications. Particularly in relation to their physical properties and the lifetime over which the manufactured article retains these properties, after which they become unsuitable for purpose. Particular applications which come to mind are critical applications of polymers to the manufacture of electronic components and the design of polymeric alloys for aircraft fuselage assembly which retain their properties for many years over which the alloy must retain the physical properties at high or low operating temperatures. A particular area of growing importance is the recycling of manufactured components for re-use. Here, the polymer must retain its thermo oxidative resistance properties over a number of remouldings. A wide and increasing range of types of polymers are being used in these critical applications and an understanding of thermo oxidative processes will be very important in developing new applications in the future. This book brings together information on the thermooxidative resistance of polymers to change during processing and end-use life. Our present understanding of the chemical changes of the polymer that accompany degradation are also reviewed and the analytical methods by which changes can be ascertained are also discussed. This book will be of interest to those involved in the investigation of polymer stability and studies of the mechanics of polymer degradation, to polymer manufacturers and those who use polymers to manufacture end-use articles. This book will also be of interest to those involved in the manufacture of stabilisers for oxidation resistance for use in polymer manufacture, mechanical engineers and designers of polymer products.
Download or read book Polymer Characterization written by Nicholas P. Cheremisinoff and published by Univ. Press of Mississippi. This book was released on 1996-12-31 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an overview of polymer characterization test methods. The methods and instrumentation described represent modern analytical techniques useful to researchers, product development specialists, and quality control experts in polymer synthesis and manufacturing. Engineers, polymer scientists and technicians will find this volume useful in selecting approaches and techniques applicable to characterizing molecular, compositional, rheological, and thermodynamic properties of elastomers and plastics.
Download or read book Molecular Characterization and Analysis of Polymers written by John M. Chalmers and published by Elsevier. This book was released on 2008-12-09 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written 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
Download or read book Compositional and Failure Analysis of Polymers written by John Scheirs and published by John Wiley & Sons. This book was released on 2000-10-03 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ein Praxisleitfaden der Polymeranalyse für alle, die sich in Polymerlabors mit Analytik, Qualitätskontrolle oder Produktentwicklung beschäftigen. Der Autor erläutert, aus seinem umfangreichen Erfahrungsschatz, welche Probleme in welchen Situationen auftreten können. Viele Fallstudien helfen bei der Anwendung der Erkenntnisse im Laboralltag. Mit einer umfangreichen Datensammlung zu physikalischen Eigenschaften von Polymeren! (07/00)
Download or read book Analytical Methods for Polymer Characterization written by Rui Yang and published by CRC Press. This book was released on 2018-01-09 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical Methods for Polymer Characterization presents a collection of methods for polymer analysis. Topics include chromatographic methods (gas chromatography, inverse gas chromatography, and pyrolysis gas chromatography), mass spectrometry, spectroscopic methods (ultraviolet-visible spectroscopy, infrared spectroscopy, Raman spectroscopy, and nuclear magnetic resonance), thermal analysis (differential scanning calorimetry and thermogravimetry), microscopy methods (scanning electron microscopy, transmission electron microscopy, and atomic force microscopy), and x-ray diffraction. The author also discusses mechanical and dynamic mechanical properties.
Download or read book Thermal Degradation of Polymeric Materials written by Krzysztof Pielichowski and published by iSmithers Rapra Publishing. This book was released on 2005 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the thermal degradation of polymers is of paramount importance for developing a rational technology of polymer processing and higher-temperature applications. Controlling degradation requires understanding of many different phenomena, including chemical mechanisms, the influence of polymer morphology, the complexities of oxidation chemistry, and the effects of stabilisers, fillers and other additives. This book offers a wealth of information for polymer researchers and processors requiring an understanding of the implications of thermal degradation on material and product performance.
Download or read book Mechanisms of Polymer Degradation and Stabilisation written by G. Scott and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this publication is two-fold. In the first place it is intended to review progress in the development of practical stabilising systems for a wide range of polymers and applications. A complemen tary and ultimately more important objective is to accommodate these practical developments within the framework of antioxidant theory, since there can be little question that further major advances in the practice of stabilisation technology will only be possible on a firm mechanistic foundation. With the continual increase in the number of commercial anti oxidants and stabilisers, often functioning by mechanisms not even considered ten years ago, there is a need for a general theory which will allow the potential user to predict the performance of a particular antioxidant structure under specific practical conditions. Any such predictive tool must involve a simplified kinetic approach to inhibited oxidation and, in Chapter 1, Denisov outlines a possible mechanistic approach with the potential to predict the most useful antioxidant to use and the limits of its usefulness. In Chapter 2, Schwetlick reviews the current state of knowledge on the antioxidant mechanisms of the phosphite esters with particular emphasis on their catalytic peroxidolytic activity. Dithiophosphate v vi PREFACE derivatives show a similar behaviour but for quite different reasons and, in Chapter 3, AI-Malaika reviews information available from analytical studies, particularly using 31p_NMR spectroscopy, to elucid ate the complex chemistry that leads to the formation of the antioxidant -active agents.
Download or read book Determination of Additives in Polymers and Rubbers written by Thomas Roy Crompton and published by iSmithers Rapra Publishing. This book was released on 2007 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed as a practical text for use in the laboratories of the plastic producer and user industries and by others such as universities and institutions who are concerned with problems associated with additives and adventitious impurities in polymers. For example, powerful new analytical tools have been made available to the chemist by a combination of various chromatographic techniques with methods of identifying separated additives and their degradation products by techniques based on infrared and mass spectrometry. In particular supercritical fluid chromatography combined with m.
Download or read book Thermal Methods of Polymer Analysis written by T.R Crompton and published by Smithers Rapra. This book was released on 2013-01-29 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the various thermal methods used for the characterisation of polymer properties and composition. All these methods study the properties of polymers as they change with temperature. The methods discussed in this book are: differential photocalorimetry, differential scanning calorimetry, dielectric thermal analysis, differential thermal analysis, dynamic mechanical analysis, evolved gas analysis, gas chromatography, gas chromatography combined with mass spectrometry, mass spectrometry, microthermal analysis, thermal volatilisation, thermogravimetric analysis and thermomechanical analysis. Each technique is discussed in detail and examples of the use of each technique are also given. Each chapter has an extensive list of references so that the reader can follow up topics of interest. This book will be a useful reference for those who already use any of these thermal methods but will also be of interest to undergraduates and those who are just starting to use these techniques.
Download or read book Chromatography Mass Spectroscopy in Polymer Analysis written by T. R Crompton and published by Smithers Rapra. This book was released on 2010-12-02 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combination of chromatography with mass spectroscopy is a very useful technique which is being increasingly used by polymer chemists to improve existing polymers and to discover new ones with specific physical properties such as thermal stability and retention of properties over a long service life.This technique is extremely powerful for the analysis and characterisation of polymers and is often based on the use of controlled chromatography - mass spectroscopy to measure a polymer's decomposition with techniques such as pyrolysis, followed by chromatography to separate any breakdown product, and, finally, mass spectroscopy, to achieve an unequivocal identification of the pyrolysis products obtained. The detail that can be obtained by such methods includes structure of the polymer backbone, branching, end groups, isomeric detail and fine detail in the structure of copolymers.The first three chapters of the book discuss the various chromatographic and mass spectroscopic techniques now available.Chapters 3-8 cover the complementary methods, based on the combination of mass spectroscopy with various chromatographic techniques such as high-performance liquid chromatography, gas chromatography and supercritical fluid chromatography.Pyrolysis chromatography-mass spectroscopy is a method of studying the structure of polymers which involves subjecting the polymer pyrolysis products to a chromatographic technique to simplify subsequent analysis and, finally mass spectroscopy to identify the pyrolysis products with the possibility of deducing finer details of polymer structure than were previously attainable by classical methods (Chapters 9-11).By providing a thorough up-to-date review of work in this field it is hoped that the book will be of interest to all those engaged in polymer research and development, and polymer users in general.
Download or read book Application of Analytical Pyrolysis and Cupric Oxide Oxidation to Characterization of Nonextractable Organic Constitutents in Drilling Fluids and Sediments written by RC. Ayers and published by . This book was released on 1988 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted to develop analytical methods suitable for the characterization of the nonextractable organic mud additives (organic polymers) in drilling mud formulations and sediments. Two analytical techniques were evaluated for this purpose: analytical pyrolysis, which involves pyrolysis gas chromatography and pyrolysis gas chromatography/mass spectrometry of organic polymers, and a cupric oxide oxidation technique, which is specific for the analysis of lignin-derived organic matter (lignosulfonates). The pyrolysis technique was suitable for characterizing and distinguishing between individual drilling mud additives. However, upon formulating those additives into drilling muds (bentonite, barite, and caustic) and sediments, their relative abundance and total pyrolysis yields decreased greatly. This decrease in abundance and yields in pyrolysis products is thought to be caused by the catalytic and/or sorptive effects of the clay matrix during pyrolysis. As a result, we conclude that the pyrolysis technique has limited application to the characterization of organic polymers in drilling fluids and sediments. The cupric oxide oxidation technique was a sensitive specific indicator of lignosulfonates and, to a lesser extent, lignites in mud formulations. The major oxidation products of the technique are vanillyl phenols, with concentrations that vary, presumably according to lignosulfonate purity, but make up more than 90% of the total lignin-derived oxidation products. Vanillyl phenol content and total lignin content were identified as the most suitable tracers of drilling mud discharges.
Download or read book Analysis of Rubber and Rubber like Polymers written by M.J. Loadman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of this book (1958) described an analytical situation which had existed for a number of years for maintaining quality control on vulcanizates of natural rubber although the situation had recently been disturbed by the introduction of a range of synthetic rubbers which required identification and quantitative estimation. For the former purpose 'wet' chemistry, based on various imperfectly understood organic reactions, was pressed into service. Alongside this was the first introduction of instrumental analysis, using the infrared spectra of either the polymers or, more usually, their pyrolytic products to 'fingerprint' the material. The identification of a range of organic accelerators, antioxidants and their derivatives which had been intro duced during the 1920s and 30s was, in the first edition, dealt with by a combination of column chromatography and infrared spectroscopy or by paper chromatography. Quantitative procedures were, however, still classical in the tradition of gravimetric or volumetric assays with an initially weighed sample yielding, after chemical manipulation, a carefully precipitated, dried and weighed end product, or a solution of known composition whose weight or titre, as a percentage of the initial sample, quantified the function being determined. The second edition of this work (1968) consolidated the newer techni ques which had been introduced in the first without adding to them although, in other applications of analytical chemistry, instrumental analysis had already brought about a transformation in laboratory practice.
Download or read book Handbook of Advanced Electronic and Photonic Materials and Devices Ten Volume Set written by Hari Singh Nalwa and published by Academic Press. This book was released on 2000-10-09 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 1: Semiconductors;Vol. 2: Semiconductors Devices;Vol. 3: High-Tc Superconductors and Organic Conductors; Vol. 4: Ferroelectrics and Dielectrics; Vol. 5: Chalcogenide Glasses and Sol-Gel Materials; Vol. 6 Nanostructured Materials; Vol. 7: Liquid Crystals, Display and Laser Materials; Vol. 8: Conducting Polymers; Vol. 9: Nonlinear Optical Materials; Volume 10: Light-Emitting Diodes, Lithium Batteries and Polymer Devices
Download or read book Polymer Additive Analytics written by Jan C. J. Bart and published by Firenze University Press. This book was released on 2006 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pyrolysis GC MS Data Book of Synthetic Polymers written by Shin Tsuge and published by Elsevier. This book was released on 2011-08-02 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this data book, both conventional Py-GC/MS where thermal energy alone is used to cause fragmentation of given polymeric materials and reactive Py-GC/MS in the presence of organic alkaline for condensation polymers are compiled. Before going into detailed presentation of the data, however, acquiring a firm grip on the proper understanding about the situation of Py-GC/MS would promote better utilization of the following pyrolysis data for various polymers samples. This book incorporates recent technological advances in analytical pyrolysis methods especially useful for the characterization of 163 typical synthetic polymers. The book briefly reviews the instrumentation available in advanced analytical pyrolysis, and offers guidance to perform effectually this technique combining with gas chromatography and mass spectrometry. Main contents are comprehensive sample pyrograms, thermograms, identification tables, and representative mass spectra (MS) of pyrolyzates for synthetic polymers. This edition also highlights thermally-assisted hydrolysis and methylation technique effectively applied to 33 basic condensation polymers. Coverage of Py-GC/MS data of conventional pyrograms and thermograms of basic 163 kinds of synthetic polymers together with MS and retention index data for pyrolyzates, enabling a quick identification Additional coverage of the pyrograms and their related data for 33 basic condensation polymers obtained by the thermally-assisted hydrolysis and methylation technique All compiled data measured under the same experimental conditions for pyrolysis, gas chromatography and mass spectrometry to facilitate peak identification Surveyable instant information on two facing pages dedicated to the whole data of a given polymer sample
Download or read book An Introduction Chemistry of the Silicones written by Eugene G. Rochow and published by Read Books Ltd. This book was released on 2011-03-23 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The organic compounds of silicon, which have been the subject of many scholarly researches during the past 80 years, at last show promise of emerging from the laboratory and finding a place in industry. An understanding of the behaviour of organosilicon materials is necessary to their intelligent use and, inasmuch as the chemistry of these substances ordinarily is not treated in our textbooks, it is possible that a compact yet comprehensive survey of our present knowledge in this field would be of service to chemists, engineers, and industrial designers. This volume has just such a purpose. The first few chapters review the silanes and their derivatives in some detail, in order to provide an understanding of the fundamental chemistry of the nonsilicate compounds of silicon. The later chapters emphasize the silicone polymers which have achieved commercial importance and deal with the methods for their preparation, their chemical and physical properties, and their possible uses. The processes available for large-scale production are treated separately, and a review of methods of analysis is included.
