Takeo Suga1
Waseda University1
Polymers with dynamic covalent bonds have attracted much attention in recent years because of their self-healing, recyclability, and shape-memory properties, which can be achieved by repeated cleavage and regeneration of covalent bonds upon thermal or photo-stimulation. However, many reports have shown that dynamic covalent bond units, including Diels-Alder (DA) adducts, dissociate at around 100°C, and although they show repairability in the room temperature to medium temperature range, their application to practical materials is limited. Here we focus on anthracene-naphthoquinone (juglone) adduct, which shows bond recombination reactions in the high-temperature range compared to well-known furan-maleimide adduct, and synthesized the crosslinked polymers with anthracene-naphthoquinone moiety. Reversible crosslinking was evaluated by the temperature dependence of rheological behavior.