| abstract |
[PROBLEMS] To provide a thermoplastic resin having a sufficient molecular weight, excellent in heat resistance, mechanical properties and weather resistance, using biomass as a raw material. A thermoplastic resin comprising a unit having a furan structure represented by the following structural formula (1), having a reduced viscosity (ηsp / C) of 0.48 dL / g or more and a terminal acid value of less than 200 μeq / g. . Heat that is excellent in heat resistance and mechanical properties by increasing the molecular weight of polyester using 2,5-furandicarboxylic acid that can be produced from plant-derived raw materials such as xylose, cellulose, and glucose that are discarded as agricultural waste Industrially useful materials that contribute to environmental problems, global warming problems, and food problems by providing plastic resins are provided. [Selection figure] None |