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Analysis of the molecular mobility of polymers in the bulk state by the fluorescence anisotropy decay technique

✍ Scribed by Monnerie, Lucien ;Viovy, Jean-Louis

Publisher: Wiley (John Wiley & Sons)
Year: 1985
Weight: 550 KB
Volume: 13
Category: Article
ISSN: 0025-116X
DOI: 10.1002/macp.1985.020131985108

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✦ Synopsis

The basic phenomena of fluorescence and fluorescence anisotropy decay (FAD) are b i e f l y presented. The FAD technique i s f i r s t applied t o polytutadiene labelled with anthracene in the middle of the chain and embedded i n a mtrix of unlabelled p o l y btadiene; experiments are performed in the temperature range -5OOC-+ 8OOC. It i s shown t h a t the experimntal data can be very well accounted for using the orientation autocorrelation function proposed by Hall and Helfand (6) for polymer chains. Studies performed on 9,lO-diallglanthracene probes (with various lengths of t h e

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