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Excimer formation of a naphthalene diisocyanate based polyurethane in solution

✍ Scribed by Hoyle, Charles E.; Kim, Kyu Jun


Book ID
126838017
Publisher
American Chemical Society
Year
1988
Tongue
English
Weight
803 KB
Volume
21
Category
Article
ISSN
0024-9297

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The Β―uorescence of pyrenyl labelled polystyrene has been investigated. The ratio of excimer to monomer intensities (I e /I m ) is found to vary tortuously with increasing concentration (C) and displays two critical concentration points, C at about 3.2 Γ‚ 10 Γ€2 g ml Γ€1 and C m at about 0.32 g ml Γ€1 .