Chemically Recyclable Thermosets through Dynamic Fe(III) Coordination and Ring-Closing Metathesis Depolymerization
발표자
이슬찬 (한국과학기술원)
연구책임자
홍순혁 (한국과학기술원)
공동저자
이슬찬 (한국과학기술원), Trimbak Baliram Mete (Korea Advanced Institute of Science and Technology), 홍순혁 (한국과학기술원)
초록
내용
Thermosets deliver outstanding performance however, their permanent crosslinks make post-consumed recycling challenging. Herein, we developed a fully recyclable coordination adaptable network (CooAN) constructed from vicinal diol-functionalized cyclohexene polymers with reversible Fe(III) crosslinking. The vicinal diol motif is essential to achieve stable network formation, while the low ring-strain energy of the cyclohexene-derived backbone enables efficient depolymerization, in contrast to cyclooctene analogues. Consequently, the material exhibits mechanical reprocessing via metal–ligand exchange, chemical decrosslinking, and complete monomer recovery through ring-closing metathesis depolymerization. This study highlights a closed-loop strategy for multifunctional thermosets by tuning ring strain energy and dynamic metal coordination.