Last edited by Gogrel
Tuesday, November 24, 2020 | History

3 edition of Polymer Photodegradation found in the catalog.

Polymer Photodegradation

Mechanisms and experimental methods

by J.F. Rabek

  • 341 Want to read
  • 23 Currently reading

Published by Springer .
Written in English

    Subjects:
  • Plastics & polymers technology,
  • Material Deterioration,
  • Polymeric Materials,
  • Technology,
  • Science,
  • Science/Mathematics,
  • Chemistry - Organic,
  • Material Science,
  • Technology / Material Science

  • The Physical Object
    FormatHardcover
    Number of Pages680
    ID Numbers
    Open LibraryOL9318473M
    ISBN 100412584808
    ISBN 109780412584800


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Polymer Photodegradation by J.F. Rabek Download PDF EPUB FB2

Polymer Photodegradation book. Read reviews from world’s largest community for readers. During the last two decades, the production of polymers and plast Ratings: 0. 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 by: 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 Cited by: Photodegradation. Photodegradation is a major problem also for thermochromic materials, since solar radiation causes polymer chain breaking, altering chemical and mechanical properties as well as leading to a loss of the reversible thermochromic effect [13].

From: Handbook of Energy Efficiency in Buildings, Related terms: Biodegradation. Note: If you're looking for a free download links of Polymer Photodegradation: Mechanisms and experimental methods Pdf, epub, docx and torrent then this site is not for you. only do ebook promotions online and we does not distribute any free download of ebook on this site.

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. Photodegradation in the environment is part of the process by which ambergris evolves from its fatty precursor.

Photodegradation also destroys paintings and other artifacts. Light - induced polymer degradation, or photodegradation, includes the physical and chemical changes caused by irradiation of polymers with ultraviolet or visible by: Photodegradation of polymers Exposure to sunlight and some artificial lights can have adverse effects on the useful life of plastic products.

Photodegradation takes Polymer Photodegradation book when UV or vis radiation breaks down the chemical bonds in a polymer, ultimately causing cracking, chalking, color changes and the loss of physical properties.

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. Polymer Photodegradation book 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. Weathering of polymeric materials. Special problems of photodegradation of polymers in coating, building solar energy utilization and space industries.

Experimental and testing techniques in photodegradation of polymers. (source: Nielsen Book Data) Summary This book is based on the author's 25 years of experience in research on photodegradation.

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 Brand: J.F. Rabek. James R. MacCallum, in Comprehensive Polymer Science and Supplements, Photochemistry.

Since a polymer must contain a chromophore before photodegradation takes place, the fundamental step in investigating the process is to identify the chromophore. Thereafter the initial photochemistry is that of the chromophore modified by the physical nature of the.

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. 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. Photodegradation of Polymers. Polymers will change over time when exposed to UV radiation. These changes are the result of light-induced homolytic fission of chemical bonds (photolysis) and photo-oxidation. The UV resistance of unprotected polymers varies widely and depends on the structure and composition.

Get this from a library. Photodegradation of Polymers: Physical Characteristics and Applications. [Jan F Rabek] -- 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. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle.

Photodegradation and photostabilization of polymers, especially polystyrene: Review Article Literature Review (PDF Available) in SpringerPlus 2(1) August with 6, Reads.

Polymer Degradation and Stabilization. Tuan Quoc Nguyen. Search for more papers by this author. Photodegradation. Radiolytic Degradation. Theoretical Aspects Regarding Polymer Photochemistry, Photochemical Behavior of Multicomponent Polymeric-based Materials, /_1, (), ( Cited by: 5.

Polymer Photodegradation by Jan F. Rabek,available at Book Depository with free delivery worldwide. The formation of hydroperoxide and its photolysis illustrate the formation of other effective functional groups such as carbonyl during β-scission of the alkoxy radical Grassie and Scott ().In addition to the polymer oxidation initiation by the photolysis of hydroperoxide groups, a second major contributor to the photodegradation of polymers is ketone photolysis, which Cited by: Norman S.

Allen, PhD, DSc, is Professor and Chair of Applied Chemistry at Manchester Metropolitan University. Professor Allen has published some papers, articles, books, and book chapters. He is the founder and a member of the editorial board of the journal Dyes and is also founder of the journal Polymer Photochemistry and is on the editorial.

Polymer Photodegradation: Mechanisms and experimental methods (English Edition) eBook: J.F. Rabek: : Kindle StoreFormat: Formato Kindle. Polymer Photodegradation: : Jan F. Rabek: Libros en idiomas extranjeros. Saltar al contenido Prueba Prime Hola, Identifícate Cuenta y listas Identifícate Cuenta y listas Devoluciones y Pedidos Suscríbete a Prime Cesta.

Todos los departamentos. Ir Buscar Hola Format: Tapa blanda. Handbook of polymer degradation, 2nd edition [Book Reviews] Article (PDF Available) in IEEE Electrical Insulation Magazine 17(6) December with.

Synthetic water-soluble polymers, well-known refractory pollutants, are abundant in wastewater effluents since they are extensively used in industry in a wide range of applications.

These polymers can be effectively degraded by advanced oxidation processes (AOPs). This entry thoroughly covers the development of the photochemical kinetic model of the polyvinyl alcohol Author: Dina Hamad, Mehrab Mehrvar, Ramdhane Dhib.

Photodegradation is the alteration of materials by light. Typically, the term refers to the combined action of sunlight and egradation is usually oxidation and photodegradation is avoided, since it destroys paintings and other artifacts.

Photo-oxidation is the degradation of a polymer surface in the presence of oxygen or ozone. The effect is facilitated by radiant energy such as UV or artificial light. This process is the most significant factor in weathering of -oxidation is a chemical change that reduces the polymer's molecular a consequence of this change the material becomes more.

What is Plastic Photodegradation. Request information. Photodegradation is the process by which a substance is altered via photons, especially those found in the wavelengths of the sun’s rays. As more and more oxygen intermingles with the polymer in the plastic, it becomes brittle and easier to break into ever diminishing pieces.

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.

Covers development relating polymer degradation with physical processes. Experiments are collected and the practical aspects are shown. This book is of interest to all engineers and scientists in industry and universities working in polymer and materials science or in physics in the field of photodegradation.

(source: Nielsen Book Data). Polymer Degradation and Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology. Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials when oxygen.

Photodegradation and Photoconductivity of Poly(N-vinylcarbazole) ROBERT F. COZZENS Chap DOI: /bkch Publication Date (Print): April 8, Effects of Photodegradation on the Sorption and Transport of Water in Polymers C.

ROGERS Chap DOI: /bkch Publication Date (Print): J Poly(vinyl chloride) (PVC), a polymer widely used in common household and industrial materials, undergoes photodegradation upon ultraviolet irradiation, leading to undesirable physicochemical properties and a reduced lifetime.

In this study, four telmisartan organotin(IV) compounds were tested as photostabilizers against photodegradation. PVC films (µm thickness) Cited by: 1.

AH PUBLICATIONS NBSIR StudiesonthePhotodegradation ofPoly(MethylMethacrylate) MohamedAbouelezz StructuresandMaterialsDivision CenterforBuildingTechnology NationalEngineeringLaboratory NationalBureauofStandards Washington,D.C and ChemistryDepartment AmericanUniversity.

breakdown of the polymer into smaller and smaller fragments. Many authors refer to any reaction which alters the properties of a polymer as a photodegradation but in our opinion only those reactions which lead to an ultimate destruction of the polymer's most important physical ct-ct 15 ci,U 1o U, U, 0 a >, U, C 0) C c-c 50 Energy per File Size: KB.

In photodegradation, the degree of changes depends on the wavelength of the UV light and the atmospheric conditions []. Under the action of sunlight, polymer materials undergo a series of oxidative reactions that lead to chemical degradation, with consequences like brittleness, loss of brightness, color change, opacity, and formation of surface cracks.

The degradation of a polymer can be induced by light, heat, and oxygen and can be greatly accelerated by stress and exposure to other chemicals. Oxidative degradation is usually initiated when polymer chains form radicals, either by hydrogen abstration or by homolytic cleavage of a carbon-carbon bonds.

Degradation of Plastics and Polymers D. J. Hourston Department of Materials, Loughborough University, UK This article is a revision of the Third Edition article by J. A. Brysdon, volume 2, pp –, Elsevier Size: KB.