Irradiation of polymers

a symposium.
  • 275 Pages
  • 2.67 MB
  • 7681 Downloads
  • English

American Chemical Society , Washington
Polymers -- Effect of radiation on -- Congre
StatementNorbert Platzer, symposium chairman.
GenreCongresses.
SeriesAdvances in chemistry series -- 66.
ContributionsPlatzer, Norbert A. J., 1911-, American Chemical Society. Division of Industrial and Engineering Chemistry.
Classifications
LC ClassificationsQD1 .A355 no. 66
The Physical Object
Paginationxii, 275 p.
ID Numbers
Open LibraryOL17757531M

The first part, Fundamentals of Ion Irradiation of Polymers covers the physical, chemical and instrumental fundamentals; treats the specific irradiation mechanisms of low- and high-energy ions (including similarities and differences); and details the potential for future technological application.

All the new findings are carefully analyzed and presented in a systematic way, while open questions are Format: Hardcover. Show all. Reviews. From the reviews: "Irradiation of polymers with energetic particles, ions, and electromagnetic radiation is of interest to researchers in many areas of industrial chemistry.

Description Irradiation of polymers FB2

This text deals specifically with the techniques of ion radiation of polymers and the role ion radiation plays in the generation of images that are vital to the area of microelectronics. it may serve as a reference. The use of radiation in polymer science constitutes a powerful tool for the quantitative study of macromolecules.

This book consists of 31 chapters, and starts with a brief introduction to fundamentals of atomic radiation and polymer structure. standard polymers, which are relatively cheap products, gives them advantage for another usage. One of the possibilities of polymers improvement is their radiation cross-linking.

The irradiation cross-linking of thermoplastic materials via electron beam or cobalt File Size: 1MB. polymers to radiation-induced degradation in mechanical properties and in optical properties (discolouration).

A key finding is the occurrence of post-irradiation annealing. consultants meeting on Advances in Radiation Chemistry of Polymers held at the University of Notre Dame, USA in September was the first in this series.

The new developments concerning polymer processing were reported and the status of the technology was reviewed during the meeting. effects are relevant too to the results of irradiating polymers.

A polymer may undergo chain scission, the molecules being broken into smaller fragments, or crosslinking may take place with the formation of larger molecules. Very low molecular weight fragments, Le., gases, and un- saturation are important side results of these Size: 1MB.

The effects of radiation on polymers have been studied for many years. When polymers are subjected to ultraviolet light or ionizing radiation, chain scission and crosslinking are possible.

The radiation degradations of several methacrylate type polymers were investigated. The primary polymer studied was polymethacrylamide (PMAAm). A common undesirable effect resulting from the irradiation of some polymers is discoloration (usually yellowing) from the development of specific chromophores or color centers in the polymer.

Color development, which occurs at widely differing doses in various polymers, may diminish or increase with storage time after irradiation. mainly for practical polymer materials that have been classified into four groups: thermoplastics, elastomers, all aromatic polymers, and composite materials.

The values of radiation resistance were determined by the change in mechanical properties. Radiation-induced degradation of polymer materials depends greatly on the irradiationFile Size: KB. Irradiation of Polymers: Fundamentals and Technological Applications by American Chemical Society available in Hardcover onalso read synopsis and reviews.

Discusses structural and physiochemical effects of irradiation and presents techniques to model and. The formation of cross-linked bonds and the degradation of polymer main chains happen simultaneously during the course of polymer radiation cross-linking G value of common rubber is called the cross-linking yield.

The G value is an important index of rubber radiation cross-linking. 1 Table displays the G values of common rubber.

The vast majority of alkene rubbers are cross. Polymers, an international, peer-reviewed Open Access journal. Dear Colleagues, We are very fortunate to have the opportunity to edit a Special Issue named “Radiation Polymers” for publication in hope to bring an inspiring view on current trends and research focus on the radiation effect and radiation technology in the polymer sciences through this Special Issue.

Irradiation of Polymers; a Symposium [Norbert, Symposium Chairman Platzer] on *FREE* shipping on qualifying offers. Discusses structural and physiochemical effects of irradiation and presents techniques to model and monitor radiation events.

Describes the use of radiation as a sterilization method in the biomedical, pharmaceutical, and food industries. Examines current topics in the stability and stabilization of polymers exposed to ionizing : $ Continuous and pulsed electron-beam irradiation has widely been used in the synthesis and modification of polymers for advanced technologies.

Irradiation with electron beams has become a primary tool in free-radical and ionic polymerization reactions to produce various polymer materials.

Effects of Ultraviolet and Vacuum Ultraviolet Irradiation on Fluorinated Ethylene—Propylene Copolymers An Electron Paramagnetic Resonance Study Soon Sam Kim and Ranty H. Liang. Other Polymers References 8 Long-Chain Branching of Polymer Resins Radiation Chemistry of Branching Polypropylene Irradiation in an Oxygen-Free or Reduced-Oxygen Atmosphere Irradiation in a Melted State Irradiation with the Addition of a Branching Promoter In the first volume of this book we have described the physical and chemical aspects of ion irradiation of polymers; the second volume will be devoted to transport processes in ion-irradiated Author: Dietmar Fink.

THE interaction of high-energy radiation with various forms of matter has been shown to produce a variety of chemical effects, depending upon the system. These effects fall Cited by: Radiation Chemistry of Polymers.

This book covers polymer radiation effects to be available in more than a decade.

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Lessons learnt from the irradiation of polymers do not always appear to. Polysulf Amber colour before irradiation. Radiation tolerance is affected by the base polymer and the curing system used.

Sulfur and resin cures are more durable. 2) All elastomers are subject to cross-linking. Avoid folds, coils, curves in the shape packaged. GAMMA COMPATIBLE MATERIALS REFERENCE Size: KB. 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 coronavirus.

Radiation resistant plastics Depending on the application, plastics can come into contact with different types of radiation, which under certain circumstances can have radiation effects on polymers. The spectrum of electromagnetic radiation ranges from radio waves, with a longer wavelength, through normal day light, with its short wavelength UV.

Irradiation Cross Linking of Polymers Exar Family of Compounds Champlain Cable is a world leader of irradiation cross-link technology in the wire and cable industry. Our three irradiation units are capable of cross-linking wire as from 4/0 - 30 awg and cables with diameters up inches.

Irradiation technology allows for the cross-linking of a File Size: KB.

Details Irradiation of polymers PDF

For reproduction of material from all other RSC journals and books: Systematic studies about the chemical structure changes in four different polymers induced by ion irradiation can bring insight into the interaction between different chemical groups and electrification performance. A Kapton film modified by ion irradiation shows several.

CRC Press Published June 1, Reference - Pages ISBN - CAT# K ISBN: OCLC Number: Notes: "Developed from a symposium sponsored by the Division of Polymer Chemistry, Inc., at the th National Meeting of the American Chemical Society, Washington, DC, August". Clough, Roger L. is the author of 'Irradiation of Polymers Fundamentals and Technological Applications' with ISBN and ISBN IRRADIATION of POLYMERS: A symposium sponsored by the Division of Industrial & Engineering Chemistry at the st Meeting of the American Chemical Society, Pittsburgh, PA, MarchAdvances in Chemistry Series Norbert Platzer, Chairman.

Radiation Chemistry of Polymers. V. S. Ivanov formed glass-reinforced plastics graft co-polymer heat Hence increase initiation installations ionic ionizing radiation ions irradiation isobutylene polyethylene polymer materials polymeriz polymerization rate polytetrafluoroethylene possible post-polymerization properties radiation.The effect of nitrous oxide on the three polymers increases monotonically with the gas pressure in an irradiation ampoule.

The disappearance of nitrous oxide and the formation of water and nitrogen indicate a dehydrogenation process from the hydrocarbon polymer chains. G(—N 2 O) is on the order of 10 3. This large value suggests energy transfer.With Permission from ACS: ACS Symposium Series Irradiation of Food and PackagingChapter 1, Pages Kim M.

Morehouse * and Vanee Komolprasert **.