ISSN:
0022-3832
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
Polyethylene, Teflon, nylon, Mylar, and Acrilan have been irradiated in vacuo and in an atmosphere of nitrogen with narrow bands of ultraviolet radiation centered at 244, 314, and 369 μ and with monochromatic ultraviolet light of wavelength 253.7 μ. The physical properties of all these polymers are ultimately degraded by ultraviolet light of any of these wavelengths, but the shorter wavelengths are much the more effective in producing changes. The degradation of polyethylene, nylon, Mylar, and Acrilan is faster when irradiation is in an inert atmosphere of nitrogen than it is when irradiation is in vacuo. Teflon, however, degrades more rapidly in vacuo than in a nitrogen atmosphere.
Zusätzliches Material:
11 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pol.1961.1205516204
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