Reversible click chemistry at the service of macromolecular materials. 2. Thermoreversible polymers based on the Diels‐Alder reaction of an A‐B furan/maleimide monomer

A novel structure was synthesized from renewable resources, bearing a furan and a masked maleimide as terminal moieties. Its thermal deprotection generated in situ the Diels-Alder (DA) A-B monomer, which was polymerized (forward DA) and then depolymerized (retro DA) in several cycles, as a function of the medium temperature. The ensuing linear polyadduct represents the first thermally reversible macromolecular material prepared from a furan-maleimide A-B monomer.