Comparative kinetic analyses for epoxy resins cured with imidazole–metal complexes

Abstract

Proton nuclear magnetic resonance (¹H NMR) spectroscopy experiments were carried out for a commercial epoxy resin system in [²H₆]DMSO solution and in bulk. Good agreement was obtained between the secondary rate constants found for the epoxide polyetherification reaction when monitored by Fourier-transform infrared (FTIR) or ¹H NMR spectroscopy in the bulk over the range of temperatures studied. This highlights the usefulness of the high temperature bulk NMR technique in kinetic studies of polymerization.