초록 |
Photoinduced thiol-ene click chemistry was investigated for efficient preparation of vegetable oil (VO)-based polyols with primary hydroxyl groups. To evaluate the efficiency of the thiol-ene reaction, experimental parameters such as thiol concentration, reaction time, and reaction temperature were studied. For the first time, nearly complete and quantitative transformation of carbon–carbon double bonds of castor oil and soybean oil to hydroxyl groups were demonstrated. The VO-based polyols were successfully incorporated into thermoplastic polyurethane (TPU), affording TPU with good elastomeric properties, high toughness, excellent transparency and improved hysteresis behaviors. The study demonstrated efficient synthetic pathway for the preparation of VO-based TPU through thiol-ene reaction to modulate their mechanical and optical properties. |