Cleavable epoxy networks using azomethine-bearing amine hardeners

This work is a proof-of-concept of the use azomethine-bearing diamines as novel hardeners standard epoxy compounds to yield cleavable and thermoformable covalent adaptable networks (CANs), with functional properties otherwise comparable conventional networks. A suitable aromatic diamine (TPA-o-PD) was synthesised at acceptable purity for intended successfully reacted DGEBA. The resulting cured exhibited glass transition temperature values thermal stability profile similar network counterparts. In contrast their counterparts however, were shown dissolve in mixtures chloroform methanesulfonic acid, due acid hydrolysis least some azomethine bonds network. recyclate material after evaporating solvent consistent thermoplastic polymer high molecular weight, suggesting limited depolymerisation/network cleavage during dissolution chloroform/methanesulfonic mixture. recyclates soluble polar aprotic solvents showed good stability, Tg weight values, attributes engineering thermoplastics. Lastly, be 200 °C, yielding self-standing films only minor reduction properties.