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Proceedings Paper

ESR investigations on radiation-induced modifications of irradiated thin polymeric films
Author(s): Mircea Chipara; David L. Edwards; Wendland Beezhold; Magdalena Chipara; Mary Nehls
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Paper Abstract

A parallel analysis of radiation-induced and thermal-induced degradation of polyethyleneterephtalate (PET) films is presented. The complexity of the degradation process is analyzed as a first step in a better understanding of the effect of combined temperature and radiation on PET. electron spin resonance spectrometry, DC electrical measurements, differential scanning calorimetry, and mechanical tests were used to analysze the effect of different ioninzing radiation (such as gamma, electrons, and accelerated ions) on thin films of PET. Data on the thermal analysis of PET are presented and analyzed. This study aims to a better understanding and modeling of complex degradation processes, required for a more reliable assessment of the behavior of polymers subjected to the space environment.

Paper Details

Date Published: 18 October 2004
PDF: 10 pages
Proc. SPIE 5554, Photonics for Space Environments IX, (18 October 2004); doi: 10.1117/12.562899
Show Author Affiliations
Mircea Chipara, Indiana Univ. (United States)
David L. Edwards, NASA Marshall Space Flight Ctr. (United States)
Wendland Beezhold, Idaho State Univ. (United States)
Magdalena Chipara, Indiana Univ. (United States)
Mary Nehls, Idaho State Univ. (United States)

Published in SPIE Proceedings Vol. 5554:
Photonics for Space Environments IX
Edward W. Taylor, Editor(s)

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