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Intramolecular excimers and microbrownian motion of flexible polymer molecules in solution

✍ Scribed by Carla Cuniberti; Angelo Perico

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 397 KB
Volume: 13
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(77)90097-0

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✦ Synopsis

The fluorescence emission of pyrene end-labelled polyethyleneoxide samples (/Vl, = 0.16.104 1.95.104) has been studied in dilute solution at 20 °. Intramolecular "excimer" fluorescence of increasing intensity is observed with decreasing molecular weight. The influence of the molecular weight on the relative quantum yield of the "monomeric" pyrene groups has been analyzed according to the general kinetic treatment of diffusion controlled quenching processes.

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