Analytical Sciences

Abstract − Analytical Sciences, 37(7), 997 (2021).

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 λmax 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.