Thermo-reversible amine-cured Diels-Alder adduct polymer networks

The preparation of soluble and reusable networks are taken as environment friendly. The present study deals with synthesis and preliminary evaluation of thermosets with Diels−Alder (DA) thermo-reversible bonds that can be soluble via a retro-DA reaction. Before curing process, 1H-NMR and FTIR confirmed the formation of DA adducts produced from the reaction of furanic monomers and bismaleimide. DSC thermograms of the amine-cured DA adducts showed an endothermic peak related to the retro-DA reaction. Under heating at ~130 oC, the cured DA adduct networks became completely soluble in solvents, unlike the common thermoset networks

Keywords:

bio-based epoxy , furfuryl glycidyl ether , furfuryl cyclocarbonated ether , thermal properties