초록 |
Benzoxazine (Bz) is a heterocyclic group capable of undergoes thermally-induced ring-opening addition reaction. Polymers possessing Bz moieties at mainchians become reative and self-crosslinkable. Hence, polybenzoxazines could be processed like thermoplastics into various shapes and then crosslinked to result in thermosetting analogues. Based on the attrctibve properties of polybenzoxazines and their corresponding thermosetting resins, research efforts on polybenzoxazines have been done in our group from chemical reaction to applications. As benzoxazine ring is a highly radical transfer group, chemical reaction routes on polybenzoxazines have been explored based on radical transfer and coupling reations. On the other hand, polybenzoxazine have been fabricated into free-standing dense films, electrospun nanofiber mats, and porous membranes. The corresponding crosslinked films and membranes have shown application potentials for lithium ion battery, oil-water separation, and liquid-liquid pervaporation separation. |