Self-healable Hydroxyl-terminated Polybutadiene based Polyurethane for Sustainable Development

Abstract

Abstract Self-healing technology provides a promising road for the sustainable development of the environment, which can extend the service life of materials, thereby reducing the waste of natural resources. As is known to all, it is difficult to obtain a polymer with fast room-temperature self-healing properties without any external stimuli. In this work, a series of polyurethanes with fast room-temperature self-healing capability were designed and prepared by combining the hydrogen bonds and the aromatic disulfide bonds. Owing to their synergistic effect, the obtained polyurethane exhibited high self-healing efficiency of 95.2% for SPU-1, and 98.4% for SPU-2. It is excepted that this design strategy may be potential applications in sustainable development for applied materials.