Photodegradation And Light Stabilization Of Heterochain Polymers

Author : Niyazi,Savenkova
Publisher : CRC Press
Page : 195 pages
File Size : 44,5 Mb
Release : 2006-11-14
Category : Science
ISBN : 9789047410874

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Photodegradation and Light Stabilization of Heterochain Polymers by Niyazi,Savenkova Pdf

Photodegradation and light stabilization are very important aspects of polymer aging. Polymer degradation includes different types of processes: thermodegradation, oxidation, acting of ozone, photodegradation, radiation, hydrolysis, mechanical degradation, and biodegradation. It is very important to know the mechanism of polymer degradation in orde

Author : I. V. Savenkova,G. E. Zaikov
Publisher : Unknown
Page : 128 pages
File Size : 55,8 Mb
Release : 2007
Category : Electronic
ISBN : OCLC:746574460

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Photodegradation and Light Stabilization of Heterochain Polymers by I. V. Savenkova,G. E. Zaikov Pdf

Photodegradation and light stabilization are very important aspects of polymer aging. Polymer degradation includes different types of processes: thermodegradation, oxidation, acting of ozone, photodegradation, radiation, hydrolysis, mechanical degradation and biodegradation. It is very important to know the mechanism of polymer degradation in order to select stabilizers against the degradation. This volume presents the analysis of recent achievements in the field of photodegradation of polymers. It includes, first of all, data of Russian investigators who have decisively contributed in the development of this field of knowledge (the schools headed by academicians V.V. Korshak, N.M. Emanuel, N.S. Enikolopov, A.A. Berlin and many others).

Author : Niyazi,Savenkova
Publisher : CRC Press
Page : 195 pages
File Size : 47,6 Mb
Release : 2006-11-14
Category : Technology & Engineering
ISBN : 9789004153622

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Photodegradation and Light Stabilization of Heterochain Polymers by Niyazi,Savenkova Pdf

Photodegradation and light stabilization are very important aspects of polymer aging. Polymer degradation includes different types of processes: thermodegradation, oxidation, acting of ozone, photodegradation, radiation, hydrolysis, mechanical degradation, and biodegradation. It is very important to know the mechanism of polymer degradation in order to select stabilizers against the degradation. This volume presents the analysis of achievements in the field of photodegradation of polymers. It includes, first of all, data of Russian investigators who have decisively contributed in the development of this field of knowledge (the schools headed by academicians V.V. Korshak, N.M. Emanuel, N.S. Enikolopov, A.A. Berlin, and many others).

Author : F. Niyazi
Publisher : Nova Publishers
Page : 198 pages
File Size : 49,6 Mb
Release : 2008
Category : Science
ISBN : 1600216579

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Photochemical Reactions in Heterochain Polymers by F. Niyazi Pdf

Photochemical reactions are the main class of chemical processes. These processes provide for life on Earth, since due to photochemical processes, plants absorb carbon oxide from the atmosphere changing them into the "meal" for all creatures on Earth. Together with "good" photochemical processes there are some "bad" as well. This book is about photodestruction and light stabilisation and is devoted to these processes. For example, the heterochain polymers. They are the main class of large-tonnage polymers, which are used for manning a great variety of polymer and composite materials (including nanocomposites).

Author : J.F. Rabek
Publisher : Springer Science & Business Media
Page : 679 pages
File Size : 50,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789401112741

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Polymer Photodegradation by J.F. Rabek Pdf

During the last two decades, the production of polymers and plastics has been increasing rapidly. In spite of developing new polymers and polymeric materials, only 40~60 are used commercially on a large scale. It has been estimated that half of the annual production of polymers is employed outdoors. The photochemical instability of most polymers limits their outdoor application as they are photodegraded quickly over periods from months to a few years. To the despair of technologists and consumers alike, photodegradation and environmental ageing of polymers occur much faster than can be expected from knowledge collected in laboratories. In order to improve polymer photostability there has been a very big effort during the last 30 years to understand the mechanisms involved in photodegradation and environmental ageing. This book represents the author's attempt, based on his 25 years' experience in research on photodegradation and photo stabilization, to collect and generalize a number of available data on the photodegradation of polymers. The space limitation and the tremendous number of publications in the past two decades have made a detailed presentation of all important results and data difficult. The author apologizes to those whose work has not been quoted or widely presented in this book. Because many published results are very often contradictory, it has been difficult to present a fully critical review of collected knowledge, without antagonizing authors. For that reason, all available theories, mechanisms and different suggestions have been presented together, and only practice can evaluate which of them are valid.

Author : Peter P. Klemchuk
Publisher : Unknown
Page : 464 pages
File Size : 53,7 Mb
Release : 1985
Category : TECHNOLOGY & ENGINEERING
ISBN : UCAL:B4477375

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Polymer Stabilization and Degradation by Peter P. Klemchuk Pdf

Author : N.S. Allen,M. Edge
Publisher : Springer Science & Business Media
Page : 218 pages
File Size : 43,7 Mb
Release : 1992-10-31
Category : Technology & Engineering
ISBN : 1851667733

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Fundamentals of Polymer Degradation and Stabilization by N.S. Allen,M. Edge Pdf

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.

Author : Sukhareva,Yakovlev,Legonkova
Publisher : CRC Press
Page : 538 pages
File Size : 52,9 Mb
Release : 2008-08-22
Category : Science
ISBN : 9789004188204

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Polymers for Packaging and Containers in Food Industry by Sukhareva,Yakovlev,Legonkova Pdf

This book delineates the scientific principles of design and fabrication of packaging materials for food as well as methods for structural modification and other techniques. It describes the main practical properties and applications of polymer materials and highlights the analysis of all processes taking place during formations and destruction of

Author : Jan F. Rabek
Publisher : Springer Science & Business Media
Page : 222 pages
File Size : 51,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642800900

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Photodegradation of Polymers by Jan F. Rabek Pdf

In this book on physical characteristics and practical aspects of polymer photodegradation Rabek emphasizes the experimental work on the subject. The most important feature of the book is the physical interpretation of polymer degradation, e.g. mechanism of UV/light absorption, formation of excited states, energy transfer mechanism, kinetics, dependence on physical properties of macromolecules and polymer matrices, formation of mechanical defects, practics during environmental ageing. He includes also some aspects of polymer photodegradation in environmental and space condition.

Author : J.F. Rabek
Publisher : Springer Science & Business Media
Page : 607 pages
File Size : 54,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400907478

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Photostabilization of Polymers by J.F. Rabek Pdf

During the last two decades, the production of polymers and plastics has been increasing rapidly. In spite of developing new polymers and polymeric materials, only 40-60 are used commercially on a large scale. It has been estimated that half of the annual production of polymers is employed outdoors. Increasing the stability of polymers and plastics towards heat, light, atmospheric oxygen and other environmental agents and weathering conditions has always been a very important problem. The photochemical instability of most of polymers limits them to outdoor application, where they are photo degraded fast over periods ranging from months to a few years. To the despair of technologists and consumers alike, photodegrada tion and environmental ageing of polymers occur much faster than can be expected from knowledge collected in laboratories. In many cases, improved methods of preparation and purification of both monomers and polymers yield products of better quality and higher resistance to heat and light. However, without stabilization of polymers by applica tion of antioxidants (to decrease thermal oxidative degradation) and photostabilizers (to decrease photo-oxidative degradation) it would be impossible to employ polymers and plastics in everyday use.

Author : Bengt G. Rånby,J. F. Rabek
Publisher : John Wiley & Sons
Page : 600 pages
File Size : 53,5 Mb
Release : 1975
Category : Science
ISBN : STANFORD:36105031700607

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Photodegradation, Photo-oxidation, and Photostabilization of Polymers by Bengt G. Rånby,J. F. Rabek Pdf

Author : Norbert A. J. Platzer
Publisher : Unknown
Page : 360 pages
File Size : 48,8 Mb
Release : 1968
Category : Science
ISBN : STANFORD:36105031278224

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Stabilization of Polymers and Stabilizer Processes by Norbert A. J. Platzer Pdf

Author : George Wypych
Publisher : Elsevier
Page : 519 pages
File Size : 43,7 Mb
Release : 2020-03-09
Category : Technology & Engineering
ISBN : 9781927885581

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Handbook of UV Degradation and Stabilization by George Wypych Pdf

Handbook of UV Degradation and Stabilization, Third Edition, discusses different aspects of UV-related phenomena that occur when polymeric materials are exposed to UV radiation. It reviews existing literature, looking at how plants, animals and humans protect themselves against UV radiation. This review permits evaluation of mechanisms of protection against UV used by living things and potential application of these mechanisms in the protection of natural and synthetic polymeric materials. Other chapters look at more specific aspects of UV degradation and stabilization, such as specific polymers and rubbers, analytical methods used in UV stabilization, health and safety, and more. This book is an excellent companion to the Databook of UV stabilizers which has also been published recently. Both books supplement each other without repeating the same information – one contains data another theory, mechanisms of action, practical effects and implications of application. Provides a practical reference guide for engineers and scientists who design with plastics and formulate plastic materials Explains the effect of UV light on plastics and how to mitigate its effects through the use of UV stabilizers Surveys the range of UV stabilizers on the market and provides advice on their selection and use

Author : Hans Helmut Gunter Jellinek
Publisher : Elsevier Publishing Company
Page : 700 pages
File Size : 53,5 Mb
Release : 1983
Category : Science
ISBN : UOM:39015016098066

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Degradation and Stabilization of Polymers by Hans Helmut Gunter Jellinek Pdf

Author : Jan F. RABEK
Publisher : Springer
Page : 664 pages
File Size : 54,7 Mb
Release : 2012-09-19
Category : Technology & Engineering
ISBN : 9401045569

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Polymer Photodegradation by Jan F. RABEK Pdf

During the last two decades, the production of polymers and plastics has been increasing rapidly. In spite of developing new polymers and polymeric materials, only 40~60 are used commercially on a large scale. It has been estimated that half of the annual production of polymers is employed outdoors. The photochemical instability of most polymers limits their outdoor application as they are photodegraded quickly over periods from months to a few years. To the despair of technologists and consumers alike, photodegradation and environmental ageing of polymers occur much faster than can be expected from knowledge collected in laboratories. In order to improve polymer photostability there has been a very big effort during the last 30 years to understand the mechanisms involved in photodegradation and environmental ageing. This book represents the author's attempt, based on his 25 years' experience in research on photodegradation and photo stabilization, to collect and generalize a number of available data on the photodegradation of polymers. The space limitation and the tremendous number of publications in the past two decades have made a detailed presentation of all important results and data difficult. The author apologizes to those whose work has not been quoted or widely presented in this book. Because many published results are very often contradictory, it has been difficult to present a fully critical review of collected knowledge, without antagonizing authors. For that reason, all available theories, mechanisms and different suggestions have been presented together, and only practice can evaluate which of them are valid.