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Author: Gerald Scott
Publisher: Elsevier Science & Technology
ISBN: 9780853348382
Category : Technology & Engineering
Languages : en
Pages : 344
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Author: Gerald Scott
Publisher: Elsevier Science & Technology
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 360
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Author: G. Scott
Publisher: Springer Science & Business Media
ISBN: 9400934297
Category : Technology & Engineering
Languages : en
Pages : 303
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Book Description
The purpose of the present series of publications 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 complementary and ultimately more important objec tive 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 the basis of a firm mechanistic foundation. Research into the role of 'stable' free radicals as antioxidants and stabilisers for polymers has intensified in recent years. Nitroxyl radicals (nitroxides) were the earliest long-lived radicals to be investi gated in detail and Maslov and Zaikov review the developments that have taken place in understanding their reaction mechanisms from the time when they were first investigated in liquid hydrocarbon systems to the present day when their outstanding performance as light stabilisers has been the object of much scientific research. Although some features of their reactivity remain obscure, the authors approach the problem kinetically and indicate the factors limiting their effectiveness.
Author: Gerald Scott
Publisher:
ISBN:
Category : Polymers
Languages : en
Pages : 342
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Author: Norman Grassie
Publisher: CUP Archive
ISBN: 9780521357975
Category : Science
Languages : en
Pages : 236
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Book Description
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.
Author: Gerald Scott
Publisher:
ISBN:
Category :
Languages : en
Pages : 244
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Author: W. L. Hawkins
Publisher: Springer Science & Business Media
ISBN: 3642693768
Category : Technology & Engineering
Languages : en
Pages : 129
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Book Description
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.
Author: Gerald Scott
Publisher:
ISBN:
Category : Polymers
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category : Polymers
Languages : en
Pages : 334
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Author: Gennadiĭ Efremovich Zaikov
Publisher: Nova Publishers
ISBN: 9781594545115
Category : Science
Languages : en
Pages : 168
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Book Description
New Developments in Polymer Analysis, Stabilisation & Degradation
Author: N. C. Billingham
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 384
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Book Description
