Accession Number : ADA302384

Title :   Spectroscopic Analysis of Radiation-Generated Changes in Tensile Properties of a Polyetherimide Film.

Descriptive Note : Technical paper,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER

Personal Author(s) : Long, Edward R., Jr. ; Long, Sheila A.

PDF Url : ADA302384

Report Date : MAY 1985

Pagination or Media Count : 39

Abstract : The effects of electron radiation on Ultem, a polyetherimide manufactured by General Electric, were studied for doses from 2 x 10 (exp 9) to 6 x 10(exp 9) rad. Specimens for tensile property testing and for electron paramagnetic resonance (EPR) and infrared (IR) spectroscopic measurements of molecular structure were studied. The spectroscopic data were used to determine the effects of radiation on molecular structures, and these effects were used to explain the radiation-generated changes in tensile properties.

Descriptors :   *RADIATION, *SPECTROSCOPY, *TENSILE PROPERTIES, *POLYMERIC FILMS, *MOLECULAR STRUCTURE, MEASUREMENT, POLYMERS, DOSAGE, ETHERS, ELECTRON IRRADIATION, INFRARED SPECTRA, TENSILE TESTERS, ELECTRON PARAMAGNETIC RESONANCE, IMIDES.

Subject Categories : Polymer Chemistry
      Organic Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE