 The study presents a novel strategy called hyperbranched dynamic crosslinking networks, HDCNs, that can transform petroleum-based epoxy thermosets into degradable, reconfigurable, and multifunctional vitramers with superior properties such as supertoughness, high flexural modulus, transparency, and fire retardancy. The HDCNs have spatially topological crosslinks for solvent adaption and multi-dynamic linkages for reversible behaviors, allowing the resulting vitramor to undergo mild room temperature degradation to dimethylacetamide and recycle carbon fiber and epoxy powder from composite. Moreover, ethanol molecule can induce the reconstruction of vitramor network by ester exchange, converting a stiff vitramor into an elastomeric feature with an ultra-high modulus, 5.45 gPa, at minus 150 degrees Celsius for their ultra-low-temperature condition uses. This study proposes a potentially sustainable advanced material to address post-consumer thermoset waste and provides a newly cross-linked mode for high-performance polymer designs. This article was authored by Yuen Bu Jiang, Hong Xia Yan, Raze Yu, and others. We are article.tv, links in the description below.