Facile fabrication of degradable polyurethane thermosets with high mechanical strength and toughness <i>via</i> the cross-linking of triple boron–urethane bonds
Chunyang Bao, Xuhao Zhang, Pengdong Yu, Qingzhong Li, Yusheng Qin, Zhirong Xin
Abstract
Polyurethane thermosets with ultrahigh mechanical strength and toughness are fabricated by cross-linking isocyanate-terminated PU prepolymers with boric acids. The poly(boron-urethanes) can fully degrade into linear PU oligomers under acid solution.
Topics & Concepts
PolyurethaneThermosetting polymerToughnessIsocyanateBoric acidMaterials scienceBoronFabricationComposite materialBond strengthBoron nitrideAdhesiveChemistryOrganic chemistryLayer (electronics)PathologyMedicineAlternative medicinePolymer composites and self-healingCovalent Organic Framework ApplicationsPolydiacetylene-based materials and applications