| 초록 |
An important issue for intrinsic self-healing polymers is breaking the trade-off between mechanical properties and healing efficiency at ambient temperatures. Self-healing properties were investigated by designing asymmetric hydrogen bond array to various polymer materials including thermoplastic elastomers, vitrimers, and hydrogels. For example, a carbonate-type thermoplastic polyurethane exhibits a tensile strength of 43 MPa and self-heals at 35 °C; a robust bio-based supramolecular polymer recovered its original strength after 1 min at room temperature; and a malleable and stretchable poly(vinyl alcohol)-borax hydrogel embedded with free micelles was synthesized. In addition, applications of self-healing polymers such as time-temperature indicator, healthcare monitoring sensor, and transdermal patch were demonstrated. |
