| abstract |
[Problem] To provide a polyester resin having a sufficient molecular weight, excellent in heat resistance, mechanical properties and weather resistance, using biomass as a raw material. A furan structure represented by the following structural formula (1), wherein a dialkyl ester component of furandicarboxylic acid and a diol component are transesterified and then subjected to a polycondensation reaction in the presence of a titanium compound. The manufacturing method of the polyester resin containing. It is possible to produce a high molecular weight polyester resin using 2,5-furandicarboxylic acid ester, which can be produced from biomass raw materials, and to provide industrially useful materials having excellent heat resistance and mechanical properties. It is possible. [Selection figure] None |