Dunkers, J.
, Lenahrt, J.
, Van, J.
and Parnas, R.
(2000),
Interfacial Response of a Fluorescent Dye Grafted to Glass, Langmuir, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=854029
(Accessed December 9, 2024)
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Interfacial Response of a Fluorescent Dye Grafted to Glass
Published
Author(s)
, Jospeh L. Lenahrt, J Van Zanten,
Abstract
The properties of an epoxy/glass interfacial region are studied by covalently grafting a fluorescent probe to the glass surface. A dimethylaminonitrostilbene fluorophore is tethered to a triethoxysilane-coupling agent, generating a fluorescently labeled silane coupling agent (FLSCA). The glass surface is coated with a silane layer that was doped with small amounts of FLSCA. When the FLSCA-doped, silane-coated glass is immersed in epoxy resin, a 42-nm blue shift in fluorescence occurs during resin cure over the grafted FLSCA layer. When the dye is dissolved in bulk epoxy a 64-nm blue shift occurs during resin cure. The difference in blue shift is attributed to higher polarity and enhanced mobility in the buried interface.Citation
Langmuir
Volume
16
Issue
21
Pub Type
Journals
Download Paper
Keywords
fluorescence, silane, epoxy, interface
Citation
Issues
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Created April 12, 2000, Updated February 19, 2017