Degradation And Stabilisation Of Polymers

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Polymer Degradation and Stabilization

Author : W. L. Hawkins
Publisher : Springer Science & Business Media
ISBN 13 : 3642693768
Total Pages : 129 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Polymer Degradation and Stabilization by : W. L. Hawkins

Download or read book Polymer Degradation and Stabilization written by W. L. Hawkins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of polymers as an important class of material was inhibited at the first by the premature failure of these versatile compounds in many applications. The deterioration of important properties of both natural and synthetic polymers is the result of irreversible changes in composition and structure of polymers molecules. As a result of these reactions, mechanical, electrical and/or aesthetic properties are degraded beyond acceptable limits. It is now generally recognized that stabilization against degradation is necessary if the useful life of polymers is to be extended sufficiently to meet design requirements for long-term applications. Polymers degrade by a wide variety of mechanisms, several of which affect all polymers through to varying degree. This monograph will concentrate on those degradation mechanisms which result from reactions of polymers with oxygen in its various forms and which are accelerated by heat and/or radiation. Those stabilization mechanisms are discussed which are based on an understanding of degradation reaction mechanisms that are reasonably well established. The stabilization of polymers is still undergoing a transition from an art to a science as mechanisms of degradation become more fully developed. A scientific approach to stabilization can only be approached when there is an understanding of the reactions that lead to degradation. Stabilization against biodegradation and burning will not be discussed since there is not a clear understanding of how polymers degrade under these conditions.

Polymer Degradation and Stabilisation

Author : Norman Grassie
Publisher : CUP Archive
ISBN 13 : 9780521357975
Total Pages : 236 pages
Book Rating : 4.3/5 (579 download)

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Book Synopsis Polymer Degradation and Stabilisation by : Norman Grassie

Download or read book Polymer Degradation and Stabilisation written by Norman Grassie and published by CUP Archive. This book was released on 1988-04-14 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of polymer degradation and stabilisation is of considerable practical importance as the industrial uses of polymeric materials continue to expand. In this book, the authors lucidly relate technological phenomena to the chemistry and physics of degradation and stabilisation processes. Degradation embraces a variety of technologically important phenomena ranging from relatively low temperature processes such as 'weathering' of plastics, 'fatigue' of rubbers through the processing of polymers in shearing mixers to very high temperature processes such as flammability and ablation. All these technological phenomena have in common certain basic chemical reactions. Thus 'weathering' has its roots in photo-oxidation, 'fatigue' and melt-degradation in mechano-oxidation and flammability, and ablation in ablation in pyrolysis and vapour phase oxidation.

Fundamentals of Polymer Degradation and Stabilization

Author : N.S. Allen
Publisher : Springer Science & Business Media
ISBN 13 : 9781851667734
Total Pages : 218 pages
Book Rating : 4.6/5 (677 download)

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Book Synopsis Fundamentals of Polymer Degradation and Stabilization by : N.S. Allen

Download or read book Fundamentals of Polymer Degradation and Stabilization written by N.S. Allen and published by Springer Science & Business Media. This book was released on 1992-10-31 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past decade, the field of polymer degradation and stabilization has become a subject of central importance in polymer science and technology. This book provides a fundamental source of information designed for those with only a basic understanding of the background of the field.

Degradation and Stabilisation of Polymers

Author : G. Geuskens
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Degradation and Stabilisation of Polymers by : G. Geuskens

Download or read book Degradation and Stabilisation of Polymers written by G. Geuskens and published by . This book was released on 1975 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mechanisms of Polymer Degradation and Stabilisation

Author : G. Scott
Publisher : Springer Science & Business Media
ISBN 13 : 9401138389
Total Pages : 336 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Mechanisms of Polymer Degradation and Stabilisation by : G. Scott

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.

Degradation and Stabilization of Polymers

Author : Hans Helmut Gunter Jellinek
Publisher : Elsevier Publishing Company
ISBN 13 :
Total Pages : 700 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Degradation and Stabilization of Polymers by : Hans Helmut Gunter Jellinek

Download or read book Degradation and Stabilization of Polymers written by Hans Helmut Gunter Jellinek and published by Elsevier Publishing Company. This book was released on 1983 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Degradation and Stabilization of Polymers

Author : Gennadiĭ Efremovich Zaikov
Publisher : Nova Publishers
ISBN 13 : 9781560721222
Total Pages : 250 pages
Book Rating : 4.7/5 (212 download)

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Book Synopsis Degradation and Stabilization of Polymers by : Gennadiĭ Efremovich Zaikov

Download or read book Degradation and Stabilization of Polymers written by Gennadiĭ Efremovich Zaikov and published by Nova Publishers. This book was released on 1995 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Thermal Degradation of Polymeric Materials

Author : Krzysztof Pielichowski
Publisher : Elsevier
ISBN 13 : 0128231424
Total Pages : 379 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Thermal Degradation of Polymeric Materials by : Krzysztof Pielichowski

Download or read book Thermal Degradation of Polymeric Materials written by Krzysztof Pielichowski and published by Elsevier. This book was released on 2022-11-05 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Degradation of Polymeric Materials, Second Edition offers a wealth of information for polymer researchers and processors who require a thorough understanding of the implications of thermal degradation on materials and product performance. Sections cover thermal degradation mechanisms and kinetics, as well as various techniques, such as thermogravimetry in combination with mass spectroscopy and infrared spectrometry to investigate thermal decomposition routes. Other chapters focus on polymers and copolymers, including polyolefins, styrene polymers, polyvinyl chloride, polyamides, polyurethanes, polyesters, polyacrylates, natural polymers, inorganic polymers, high temperature-resistant and conducting polymers, blends, organic-inorganic hybrid materials, nanocomposites, and biocomposites. Finally, other key considerations such as recycling of polymers by thermal degradation, thermal degradation during processing, and modelling, are discussed in detail. Explains mechanisms of polymer degradation, making it possible to understand and predict material behavior at elevated temperatures Offers systematic coverage of each polymer group that is supported by data detailed explanations and critical analysis Investigates thermal decomposition routes in new materials, such as organic-inorganic hybrid materials and polymer nanocomposites

Degradation and Stabilisation of Polyolefins

Author : Norman S. Allen
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.:/5 (44 download)

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Book Synopsis Degradation and Stabilisation of Polyolefins by : Norman S. Allen

Download or read book Degradation and Stabilisation of Polyolefins written by Norman S. Allen and published by . This book was released on 1983 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physical Properties of Polymers

Author : James E. Mark
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Physical Properties of Polymers by : James E. Mark

Download or read book Physical Properties of Polymers written by James E. Mark and published by . This book was released on 1993 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents have been divided into sections on physical states of polymers and characterization techniques. Chapters on physical states include discussions of the rubber elastic state, the glassy state, melts and concentrated solutions, the crystalline state, and the mesomorphic state. Characterization techniques described are molecular spectroscopy and scattering techniques.

Stabilization of Polymeric Materials

Author : Hans Zweifel
Publisher : Springer Science & Business Media
ISBN 13 : 3642803059
Total Pages : 225 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Stabilization of Polymeric Materials by : Hans Zweifel

Download or read book Stabilization of Polymeric Materials written by Hans Zweifel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plastics are used worldwide in everyday life, e.g. as food packaging, electronics, construction, automotive parts, and household appliances. To produce these products with the desired service lifetimes the use of suitable stabilizers is necessary. This book provides a concise and comprehensive overview of the basic mechanisms of plastic degradation processes caused by heat and light. At its core is a detailed description of the stabilization of different polymers, including an explanation of stabilization mechanisms and the influence of commonly used additives such as fillers, flame retardents and pigments on the stability of plastic. Every polymer scientist, material technologist, or application engineer dealing with the design of the properties of plastics will benefit from this new overview.

Progress in Polymer Degradation and Stability Research

Author : Herbert W. Moeller
Publisher : Nova Publishers
ISBN 13 : 9781600218286
Total Pages : 406 pages
Book Rating : 4.2/5 (182 download)

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Book Synopsis Progress in Polymer Degradation and Stability Research by : Herbert W. Moeller

Download or read book Progress in Polymer Degradation and Stability Research written by Herbert W. Moeller and published by Nova Publishers. This book was released on 2007-06-11 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer degradation is a change in the properties -- tensile strength, colour, shape, etc -- of a polymer or polymer based product under the influence of one or more environmental factors such as heat, light or chemicals. These changes may be undesirable, such as changes during use, or desirable, as in biodegradation or deliberately lowering the molecular weight of a polymer. Such changes occur primarily because of the effect of these factors on the chemical composition of the polymer. In a finished product such a change is to be prevented or delayed. However, the degradation process can be useful from the view points of understanding the structure of a polymer or recycling/reusing the polymer waste to prevent or reduce environmental pollution. Polymers molecules are very large on the molecular scale which derive their unique and useful properties from their size.

Polymer-Improved Oil Recovery

Author : K.S. Sorbie
Publisher : Springer Science & Business Media
ISBN 13 : 9401130442
Total Pages : 371 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Polymer-Improved Oil Recovery by : K.S. Sorbie

Download or read book Polymer-Improved Oil Recovery written by K.S. Sorbie and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of oil in the world economy cannot be overstated, and methods for recovering oil will be the subject of much scientific and engineering research for many years to come. Even after the application of primary depletion and secondary recovery processes (usually waterflooding), much oil usually remains in a reservoir, and indeed in some heterogeneous reservoir systems as much as 70% of the original oil may remain. Thus, there is an enormous incentive for the development of improved or enhanced methods of oil recovery, aimed at recovering some portion of this remainil)g oil. The techniques used range from 'improved' secondary flooding methods (including polymer and certain gas injection processes) through to 'enhanced' or 'tertiary' methods such as chemical (surfactant, caustic, foam), gas miscible (carbon dioxide, gas reinjection) and thermal (steam soak and drive, in-situ combustion). The distinction between the classification ofthe methods usually refers to the target oil that the process seeks to recover. That is, in 'improved' recovery we are usually aiming to increase the oil sweep efficiency, whereas in 'tertiary' recovery we aim to mobilise and recover residual or capillary trapped oil. There are a few books and collections of articles which give general overviews of improved and enhanced oil recovery methods. However, for each recovery method, there is such a wide range of interconnected issues concerning the chemistry, physics and fluid mechanics of flow in porous media, that rarely are these adequately reviewed.

Polymer Degradation and Stabilization

Author : W. Lincoln Hawkins
Publisher :
ISBN 13 : 9780387128511
Total Pages : 119 pages
Book Rating : 4.1/5 (285 download)

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Book Synopsis Polymer Degradation and Stabilization by : W. Lincoln Hawkins

Download or read book Polymer Degradation and Stabilization written by W. Lincoln Hawkins and published by . This book was released on 1984 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Polymer Degradation and Stabilization

Author : W L Hawkins
Publisher :
ISBN 13 : 9783642693779
Total Pages : 140 pages
Book Rating : 4.6/5 (937 download)

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Book Synopsis Polymer Degradation and Stabilization by : W L Hawkins

Download or read book Polymer Degradation and Stabilization written by W L Hawkins and published by . This book was released on 1983-12-01 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aging and Stabilization of Polymers

Author : M. B. Neiman
Publisher : Springer Science & Business Media
ISBN 13 : 146158549X
Total Pages : 374 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Aging and Stabilization of Polymers by : M. B. Neiman

Download or read book Aging and Stabilization of Polymers written by M. B. Neiman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for a broad development of the production of polymer ma terials has become evident. All these materials are subject to various types of aging (destruction); hence, stabilizers which permit the stor age, reprocessing, and use of polymer materials without any appreci able change in their properties must be introduced into them. In recent years, this problem of stabilizing polymers has attracted the attention of many scientists and technologists, both in the USSR and abroad. The scientific basis of the foreign studies will be found in a number of theo retical premises, but chiefly the theory of chain reactions with un branched chains. In the Soviet Union, the concepts of Academician N. N. Semenov on chain reactions with degenerate branches have become the starting point of theoretical studies of the stabilization and destruction of polymers. Soviet scientists have developed a theory of critical concentrations of antioxidants and have shown that the processes of stabilization have a very complex chemical character. The nature of the polymers them selves greatly affects these processes and consequently, different stabil izers are required for polymers of different structures. In addition, it has been shown that the antioxidants used thus far can not only cause chain termination, but can also initiate oxidation and give rise to de generate branches.

Plastics Additives

Author : G. Pritchard
Publisher : Springer Science & Business Media
ISBN 13 : 9401158622
Total Pages : 650 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Plastics Additives by : G. Pritchard

Download or read book Plastics Additives written by G. Pritchard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although plastics are extremely successful commercially, they would never reach acceptable performance standards either in properties or processing without the incorporation of additives. With the inclusion of additives, plastics can be used in a variety of areas competing directly with other materials, but there are still many challenges to overcome. Some additives are severely restricted by legislation, others interfere with each other-in short their effectiveness varies with circumstances. Plastics Additives explains these issues in an alphabetical format making them easily accessible to readers, enabling them to find specific information on a specific topic. Each additive is the subject of one or more articles, providing a suffinct account of each given topic. An international group of experts in additive and polymer science, from many world class companies and institutes, explain the recent rapid changes in additive technology. They cover novel additives (scorch inhibitors, compatibilizers, surface-modified particulates etc.), the established varieties (antioxidants, biocides, antistatic agents, nucleating agents, fillers, fibres, impact modifiers, plasticizers) and many others, the articles also consider environmental concerns, interactions between additives and legislative change. With a quick reference guide and introductory articles that provide the non-specialist and newcomer with relevant information, this reference book is essential reading for anyone concerned with plastics and additives.