| 초록 |
Polyurethanes (PUs) are one of the most interesting polymers which are generally synthesized from petroleum-based materials. Furandicarboxylic acid (FDCA) from biomass sugars, which have good thermal stability, has been considered as a good biomass precursor. Curtius rearrangement is the thermal decomposition of an acyl azide to an isocyanate with a loss of nitrogen gas. Bioplastics are commonly defined as the biobased or biodegradable polymer. To solve environmental pollution, it is important to develop eco-friendly polyurethane with photodegradation ability. In this study, FDCA is substituted with acyl azide and reacts to a variety of alcohols via Curtius rearrangement. Through various catalyst screenings such as DBTDL, DABCO, organic catalyst, optimize the reaction condition. Also, the nitro group was introduced at the ortho position to photo-degradable polyurethane. We measured photo-degradability of synthesized polyurethane and can be applied as eco-friendly plastic. |
