New Developments In Polymer Analysis Stabilization And Degradation
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New Developments in Polymer Analysis Stabilization and Degradation
Author | : Gennadiĭ Efremovich Zaikov |
Publsiher | : Nova Publishers |
Total Pages | : 168 |
Release | : 2005 |
Genre | : Science |
ISBN | : 1594545111 |
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New Developments in Polymer Analysis, Stabilisation & Degradation
Polymer Analysis Degradation and Stabilization
Author | : Gennadiĭ Efremovich Zaikov,Alfonso Jiménez |
Publsiher | : Nova Publishers |
Total Pages | : 192 |
Release | : 2005 |
Genre | : Science |
ISBN | : 1594542163 |
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Polymer Analysis, Degradation & Stabilization
Polymer Analysis and Degradation
Author | : Alfonso Jimenez,Gennadiĭ Efremovich Zaikov |
Publsiher | : Nova Science Publishers |
Total Pages | : 300 |
Release | : 2000 |
Genre | : Science |
ISBN | : UOM:39015050696734 |
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One of the most important features of the technical progress of this century has been deep and wide penetration of polymeric materials into all fields of human life. But, more than a half century of their use has revealed some shortcomings common to all of these materials. Probably the most important of these is the tendency of most synthetic polymers to degradation. Polymer degradation is, in fact, a series of chemical and physical transformations occurring in the polymer during service, processing or storage, which causes deterioration in valuable properties. Many factors are responsible for polymer degradation, including heat, UV radiation, biological agents and many others. These factors, either separately or together, cause complex processes including cracking, depolymerisation, cross-linking, oxidation, etc. They may cause considerable and often quite rapid deterioration of polymer properties leading to a sharp decrease in their useful life. This volume is organised to provide a wide coverage of new and traditional polymers and their behaviour during degradation, as well as the important chemical and engineering aspects of these materials relative to processing and performance in various applications.
Polymer Degradation and Stabilization
Author | : W. L. Hawkins |
Publsiher | : Springer Science & Business Media |
Total Pages | : 129 |
Release | : 2012-12-06 |
Genre | : Technology & Engineering |
ISBN | : 9783642693762 |
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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,Gerald Scott |
Publsiher | : CUP Archive |
Total Pages | : 236 |
Release | : 1988-04-14 |
Genre | : Science |
ISBN | : 0521357977 |
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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,M. Edge |
Publsiher | : Springer Science & Business Media |
Total Pages | : 218 |
Release | : 1992-10-31 |
Genre | : Technology & Engineering |
ISBN | : 1851667733 |
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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.
Developments in Polymer Stabilisation
Author | : Gerald Scott |
Publsiher | : Elsevier Science & Technology |
Total Pages | : 360 |
Release | : 1979 |
Genre | : Technology & Engineering |
ISBN | : STANFORD:36105019764435 |
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Progress in Polymer Degradation and Stability Research
Author | : Herbert W. Moeller |
Publsiher | : Nova Publishers |
Total Pages | : 406 |
Release | : 2007-06-11 |
Genre | : Science |
ISBN | : 1600218288 |
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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.