retention stability thermal multiple demonstrate

The gap

Supporting evidence — 2 representative gaps

• Atom-economy upcycling of commodity thermoset polyurethane into photocuring 3D printing resins based on selective cleavage—crosslink strategy (2026) · doi

  While the shape reconfiguration experiments demonstrate thermal reprogramming at 100 °C for 20 minutes, the long-term durability, thermal stability, and mechanical property retention through multiple reshape cycles are not discussed.

  Keywords: thermal shape reconfiguration experiments demonstrate reprogramming minutes long term durability stability mechanical property retention multiple
• Molecularly Structured Castor Oil-Derived Epoxy Vitrimers Crosslinked with Acidic Disulfide-Bearing Curing Agents: Efficient Dynamic Response, Degradability, And Recyclability (2026) · doi

  While both vitrimer systems demonstrate some degree of reprocessability with mechanical property retention, the study did not explore the effects of multiple reprocessing cycles (beyond 2 cycles) or long-term thermal aging on performance stability.

  Keywords: cycles vitrimer systems demonstrate degree reprocessability mechanical property retention explore effects multiple reprocessing beyond long