Preparation and properties of fluoroalkyl end-capped oligomer/fluoresceins nanocomposites
Journal of Materials Science, ISSN: 0022-2461, Vol: 43, Issue: 4, Page: 1366-1375
2008
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- 4Captures
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Article Description
Self-assembled fluorinated oligomeric aggregates formed by fluoroalkyl end-capped N-(1,1-dimethyl-3-oxobutyl)acrylamide oligomers, N,N- dimethylacrylamide oligomers, and acrylic acid oligomers in methanol could recognize selectively fluoresceins as guest molecules to form a new class of fluorinated aggregates/fluoresceins nanocomposites. These fluorinated fluoresceins nanocomposites were found to exhibit an extraordinarily enhanced light absorption (λ: ca. 440 nm) compared to that (λ: 452 and 480 nm) of the parent fluorescein in the absence of fluorinated aggregates. On the other hand, fluoroalkyl end-capped 2-carboxyethyl acrylate oligomers, which possess no aggregate characteristic in methanol solutions, could not afford such an enhanced light absorption peak under similar conditions. Not only fluorescein but also fluorescein derivatives such fluoresceinamine, carboxyfluorescein, and fluorescein isothiocyanate afforded similar enhanced narrow absorption peaks under similar conditions. Naphthofluorescein was also encapsulated into these fluorinated oligomeric aggregate cores to afford fluorinated aggregates/naphthofluorescein composites, and these fluorinated naphthofluorescein composites afforded an extremely enhanced narrow absorption peak around 520 nm. © 2007 Springer Science+Business Media, LLC.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=37849002122&origin=inward; http://dx.doi.org/10.1007/s10853-007-2288-0; http://link.springer.com/10.1007/s10853-007-2288-0; http://link.springer.com/content/pdf/10.1007/s10853-007-2288-0; http://link.springer.com/content/pdf/10.1007/s10853-007-2288-0.pdf; http://link.springer.com/article/10.1007/s10853-007-2288-0/fulltext.html; http://www.springerlink.com/index/10.1007/s10853-007-2288-0; http://www.springerlink.com/index/pdf/10.1007/s10853-007-2288-0; https://dx.doi.org/10.1007/s10853-007-2288-0; https://link.springer.com/article/10.1007/s10853-007-2288-0
Springer Science and Business Media LLC
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