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Photooxidative degradation of clear ultraviolet absorbing acrylic copolymer surfaces
- Publication Year :
- 1983
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1983.
-
Abstract
- Photodegradation of copolymer of methyl methacrylate and 2(2'-hydroxy 5'vinyl-phenyl) 2H-benzotriazole has been investigated in order to determine the changes in the chemical composition of the surface of the copolymer on photooxidation. An electronic energy transfer mechanism has been postulated in order to interpret the observed photochemical changes in the polymer. Preliminary examination of the photophysical properties of the chromophore provides support for such a mechanism.
- Subjects :
- Nonmetallic Materials
Subjects
Details
- Language :
- English
- Database :
- NASA Technical Reports
- Notes :
- NAS7-100
- Publication Type :
- Report
- Accession number :
- edsnas.19830047535
- Document Type :
- Report