Download or read book Pyrolysis based Methods for Polymer Characterization written by Wouter Knol and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The field of polymer analysis features many challenges. In general, there is a need for novel or improved analytical methods for contemporary industrial copolymers. Such polymers are often extremely complex, featuring distributions in molar mass, chemical composition, sequence, etc. In this work various aspects of copolymer analysis were explored, to advance the field to better meet current industrial needs. Two main aspects of copolymer analysis were investigated, namely sequence determination and heterogeneity analysis as a function of molar mass. The sequence analysis of copolymers gives insight in the order of monomers in the polymer backbone. Pyrolysis-gas chromatography (Py-GC) was explored as a method for the analysis of acrylate copolymers. It was found that the method was well applicable to the sequencing of acrylate copolymers, even being capable of sequencing ternary copolymers. The sequencing of styrene-acrylate copolymers was also investigated and proved to be more challenging, requiring an external calibration approach to derive sequence information. For the heterogeneity analysis of copolymers various hyphenations of liquid chromatography and pyrolysis-based analysis methods were developed. A method for Py-GC hyphenation to size-exclusion chromatography was developed, this method provided detailed information on the polymer’s chemical nature as a function of molar mass. The method required relatively long analysis time however, therefore the GC separation was omitted in a later study yielding a size-exclusion chromatography-pyrolysis-mass spectrometry hyphenation. This method yielded greatly reduced analysis times while delivering comparable chemical information. Overall, the research covered in this work should accelerate the development of novel (sustainable) polymers."--

Download or read book Pyrolysis Techniques for Polymer Characterization written by I. N. Einhorn and published by . This book was released on 1974* with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Characterization Interdisciplinary Approaches written by Clara D. Craver and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical and spectroscopic methods have been used jointly for characterization of polymers for at least four decades. Yet, new techniques permit increasingly refined determination of polymer chemistry and morphol ogy_ The correlation of this knowledge with physical properties of polymers is helpful to planned synthesis of new products. The most prominent spectroscopic techniques through the forties and fifties were infrared and ultraviolet spectroscopy. Nuclear magnetic resonance, electron spin resonance and MOssbauer spectroscopy started making sig nificant contributions to polymer chemistry in the early sixties. Still more recently fluorescence spectroscopy and laser Raman spectroscopy have become readily appli cable to polymers and are contributing significantly to the understanding of the relationship between polymer structure and properties. Determination of the distribution of monomer se quences by molecular size has become possible through combined gel permeation chromatography and spectroscopic analysis. Fragments of polymers from chemical break down or from pyrolysis are further fractionated and structurally analyzed. The relationship between the chemistry of polymers and performance can be determined from changes in chemical structure and orientation after curing, degradation, or physical or thermal manipulation of the polymers.

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 Polymer Characterization written by Dan Campbell and published by CRC Press. This book was released on 2017-12-21 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discerning the properties of polymers and polymer-based materials requires a good understanding of characterization. This revised and updated text provides a comprehensive survey of characterization methods within its simple, concise chapters. Polymer Characterization: Physical Techniques, provides an overview of a wide variety of characterization methods, which makes it an excellent textbook and reference. It starts with a description of basic polymer science, providing a solid foundation from which to understand the key physical characterization techniques. The authors explain physical principles without heavy theory and give special emphasis to the application of the techniques to polymers, with plenty of illustrations. Topics covered include molecular weight determination, molecular and structural characterization by spectroscopic techniques, morphology and structural characterization by microscopy and diffraction, and thermal analysis. This edition contains a new chapter on surface analysis as well as some revised problems and solutions. The concise treatment of each topic offers even those with little prior knowledge of the subject an accessible source to relevant, simple descriptions in a well-organized format.

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 2011-10-13 with total page 406 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 Analytical Pyrolysis of Synthetic Organic Polymers written by Serban C. Moldoveanu and published by Elsevier. This book was released on 2005-01-20 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical Pyrolysis of Synthetic Organic Polymers is a follow-up to Analytical Pyrolysis of Natural Organic Polymers, which is volume 20 of the series. The main focus of the book is on practical applications of analytical pyrolysis in synthetic organic polymer identification and characterization. The first part of the book has five chapters including an introduction, a discussion on physico-chemistry of thermal degradation of synthetic polymers and on instrumentation used in analytical pyrolysis, a chapter discussing what type of information can be obtained from analytical pyrolysis, and a chapter dedicated to the analysis and characterization of synthetic polymers.The second part systematically covers the analytical pyrolysis of various classes of synthetic polymers. Some theoretical background for the understanding of polymer structure using analytical pyrolysis is also discussed.* Includes broad coverage of organic synthetic macromolecules* Focuses on physico-chemistry of thermal degradation, and the analytical pyrolysis of various classes of synthetic polymers* Is well written and suitable for both researchers and chemists working in analytical chemistry or in synthetic polymers

Download or read book Pyrolysis gas Chromatography mass Spectrometry Of Polymeric Materials Second Edition written by Peter Kusch and published by World Scientific. This book was released on 2023-08-28 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Readers will find many practical applications of pyrolysis-GC/MS as well as R&D usage in this newly revised and expanded edition. Detailed experimental descriptions for the identification of synthetic polymers and copolymers are included. This volume presents the current state of analytical pyrolysis, and contains full identification of several classes of polymers/copolymers and biopolymers that readers will find helpful. Structures and functions of various types of pyrolyzers are explored, as well as the results of the pyrolysis-gas chromatographic-mass spectrometric identification of synthetic polymers/copolymers and biopolymers at 700°C.Practical applications of this hyphenated technique, detailing the analysis of microplastics, failure analysis in the automotive industry and solutions for technological problems are provided. Numerous practical applications of pyrolysis-GC/MS, for industrial and R&D usage, will be of benefit to Chemists and Engineers, as well as for students of Chemistry and Polymer Sciences.

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 Pyrolysis gas Chromatography Mass Spectrometry Of Polymeric Materials written by Peter Kusch and published by World Scientific. This book was released on 2018-10-08 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: The methodology of analytical pyrolysis-GC/MS has been known for several years, but is seldom used in research laboratories and process control in the chemical industry. This is due to the relative difficulty of interpreting the identified pyrolysis products as well as the variety of them. This book contains full identification of several classes of polymers/copolymers and biopolymers that can be very helpful to the user. In addition, the practical applications can encourage analytical chemists and engineers to use the techniques explored in this volume.The structure and the functions of various types of pyrolyzers and the results of the pyrolysis-gas chromatographic-mass spectrometric identification of synthetic polymers/copolymers and biopolymers at 700°C are described. Practical applications of these techniques are also included, detailing the analysis of microplastics, failure analysis in the automotive industry and solutions for technological problems.

Download or read book Polymers Polymer Characterization and Analysis written by Jacqueline I. Kroschwitz and published by Wiley-Interscience. This book was released on 1990-01-29 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is one of a series of selected reprints from the world-renowned Encyclopedia of Polymer Science and Engineering designed to provide specific audiences with articles grouped by a central theme. Included are all of the original articles related to polymer characterization and analysis, with full texts, tables, figures, and reference materials from the original--reproduced unchanged. Articles are by industrial or academic experts in their field. Includes coverage of the newest analytical methods, a wealth of physical and mechanical data, and standards and specifications for materials. Alphabetical organization, extensive cross-references, and a complete index further enhance its usefulness.

Download or read book Analytical Pyrolysis of Natural Organic Polymers written by S.C. Moldoveanu and published by Elsevier. This book was released on 1998-11-11 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical pyrolysis is one of the many tools utilized for the study of natural organic polymers. This books describes in three parts the methodology of analytical pyrolysis, the results of pyrolysis for a variety of biopolymers, and several practical applications of analytical pyrolysis on natural organic polymers and their composite materials. Analytical pyrolysis methodology covers two distinct subjects, the instrumentation used for pyrolysis and the analytical methods that are applied for the analysis of the pyrolysis products. A variety of pyrolytic techniques and of analytical instruments commonly coupled with pyrolysis devices are given.The description of the results of pyrolysis for biopolymers and some chemically modified natural organic polymers is the core of the book. The main pyrolysis products of numerous compounds as well as the proposed mechanisms for their pyrolysis are described. In this part an attempt is made to present as much as possible the chemistry of the pyrolytic process of natural organic polymers.The applications of analytical pyrolysis include topics such as polymer detection used for example in forensic science, structure elucidation of specific polymers, and identification of small molecules present in polymers (anti-oxidants, plasticizers, etc.). Also, the degradation during heating is a subject of major interest in many practical applications regarding the physical properties of polymers. The applications to composite polymeric materials are in the fields of classification of microorganisms, study of a variety of biological samples, study of fossil materials, etc. Analytical pyrolysis can also be used for obtaining information on the burning area generate pyrolysates that have complex compositions. Their analysis is important in connection with health issues, environmental problems, and taste of food and cigarettes.Features of this book:• Presents analytical pyrolysis as a uniform subject and not as a conglomerate of scientific papers.• Puts together in an organized manner a large volume of available information in this specific field.• Provides original results which address subjects with relatively scarce information in literature.• Gives original views on subjects such as the parallel between the pyrolytic process and the ion fragmentation in mass spectrometry.• Includes the role of pyrolysis in the burning process.The three parts of the book are covered in 18 chapters, each divided into sections. Some sections are further divided by particular subjects. References are given for each chapter, and an effort has been made to include as much as possible from the available representative information. A few unpublished personal results are also included.

Download or read book Polymer Characterization written by Nicholas P. Cheremisinoff and published by William Andrew. 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 Pyrolysis and GC in Polymer Analysis written by Michael N. Liebman and published by CRC Press. This book was released on 1984-12-28 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modern Methods of Polymer Characterization written by Howard G. Barth and published by John Wiley & Sons. This book was released on 1991-09-03 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the methods used for characterization of polymers. In addition to theory and basic principles, the instrumentation and apparatus necessary for methods used to study the kinetic and thermodynamic interactions of a polymer with its environment are covered in detail. Some of the methods examined include polymer separations and characterization by size exclusion and high performance chromatography, inverse gas chromatography, osmometry, viscometry, ultracentrifugation, light scattering and spectroscopy.

Download or read book Hyphenated Techniques in Polymer Characterization written by Theodore Provder and published by . This book was released on 1994 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers significant advances in hyphenated techniques in polymer characterization. Presents coupled thermal techniques and couple-thermal-spectroscopic techniques, including STA-MS, STA-FTIR, TG/IR, GC/IR, TGA/IR, TB/FTIR, DSC/FTIR, and TGA/FTIR.

Download or read book Applied Pyrolysis Handbook written by Thomas P. Wampler and published by CRC Press. This book was released on 2006-12-13 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical pyrolysis allows scientists to use routine laboratory instrumentation for analyzing complex, opaque, or insoluble samples more effectively than other analytical techniques alone. Applied Pyrolysis Handbook, Second Edition is a practical guide to the application of pyrolysis techniques to various samples and sample types for a dive