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Title: Studies of oxidative degradation of polymers induced by ionizing radiation

Abstract

Radiation effects on polymers in the presence of air are characterized by complicated phenomena such as dose-rate effects and post-irradiation degradation. These time-dependent effects can be understood in these terms: (1) features of the free radical chain-reaction chemistry underlying the oxidation, and (2) oxygen diffusion effects. A profiling technique has been developed to study heterogeneous degradation resulting from oxygen diffusion, and kinetic schemes have been developed to allow long-term aging predictions from short-term high dose-rate experiments. Low molecular weight additives which act either as free-radical scavengers or else as energy-scavengers are effective as stabilizers in radiation-oxidation environments. Non-radical oxidation mechanisms, involving species such as ozone, can also be important in the radiation-oxidation of polymers. 18 refs., 15 figs.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
OSTI Identifier:
6085815
Report Number(s):
SAND-89-0449C; CONF-8905113-1
ON: DE89008279
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Conference
Resource Relation:
Conference: 11. international conference on stabilization and controlled degradation of polymers, Lucerne, Switzerland, 24 May 1989; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; POLYMERS; RADIATION EFFECTS; AGING; DIFFUSION; DOSE RATES; IRRADIATION; OXIDATION; OZONE; TEMPERATURE DEPENDENCE; TEMPERATURE EFFECTS; TIME DEPENDENCE; CHEMICAL REACTIONS; 360605* - Materials- Radiation Effects; 360604 - Materials- Corrosion, Erosion, & Degradation

Citation Formats

Clough, R. L., and Gillen, K. T. Studies of oxidative degradation of polymers induced by ionizing radiation. United States: N. p., 1989. Web.
Clough, R. L., & Gillen, K. T. Studies of oxidative degradation of polymers induced by ionizing radiation. United States.
Clough, R. L., and Gillen, K. T. 1989. "Studies of oxidative degradation of polymers induced by ionizing radiation". United States. https://www.osti.gov/servlets/purl/6085815.
@article{osti_6085815,
title = {Studies of oxidative degradation of polymers induced by ionizing radiation},
author = {Clough, R. L. and Gillen, K. T.},
abstractNote = {Radiation effects on polymers in the presence of air are characterized by complicated phenomena such as dose-rate effects and post-irradiation degradation. These time-dependent effects can be understood in these terms: (1) features of the free radical chain-reaction chemistry underlying the oxidation, and (2) oxygen diffusion effects. A profiling technique has been developed to study heterogeneous degradation resulting from oxygen diffusion, and kinetic schemes have been developed to allow long-term aging predictions from short-term high dose-rate experiments. Low molecular weight additives which act either as free-radical scavengers or else as energy-scavengers are effective as stabilizers in radiation-oxidation environments. Non-radical oxidation mechanisms, involving species such as ozone, can also be important in the radiation-oxidation of polymers. 18 refs., 15 figs.},
doi = {},
url = {https://www.osti.gov/biblio/6085815}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

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