Analytical Sciences

Fluorescent Behavior of Dibenzazepine-containing Polymers in Epoxy Resin

Hideki HAYASHI, Yuzo ISHIGAKI, and Mistuo ODA

Nagoya Municipal Industrial Research Institute, 3-4-41 Rokuban, Astuta, Nagoya 456-0058, Japan

Dibenzazepine derivatives were added to epoxy resin (bisphenol A diglycidyl ether, DGEBA). DSC analyses showed that DGEBA could be cured by the addition of secondary and tertiary alkylamine-type compounds, but not by the addition of an N-butoxycarbonyl substituted compound. Curing of the cast film and the adhesion of glass substrates by a dibenzazepine-containing polymers/DGEBA mixture was also observed. Therefore, the fluorescence spectra of dibenzazepine-containing polymers in DGEBA were compared. When the polymer was blended with DGEBA and the mixture was heated, the fluorescent λ_max changed. This spectral change depended on the substituent of the polymer. This fluorescent behavior suggests that the polymers are likely to be monitoring agents for curing and adhesion.

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