Crosslinked polymers and their corresponding composites offer a cost-effective replacement for classical materials,with an intrinsically low ecological impact,because of their light weight and simple production process.However,in this presentation,a new chemical class of crosslinked polymers obtained from upscalable raw chemicals,using a spontaneous reaction,will be reported.Although the formed chemical bonds are permanent ones,they can very rapidly exchange positions at higher temperatures.This chemical feature allows for fast reprocessing upon heating without damaging the structural integrity of the material.