High-performance furandicarboxylate polyesters: Structure–property relationships in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimethyl furandicarboxylate (DMFD) is a biomass-derived monomer with a rigid aromatic ring structure similar to that of terephthalic acid, which makes it suitable for the synthesis of both polyesters and polyamides. Despite their high potential, the effects of minor structural differences in the diol components on the properties of DMFD-based polymers have not been extensively investigated to date. In this study, two furanoate polyesters, poly(propylene furanoate) (PPF) and poly(neopentyl furanoate) (PNF), were synthesized to investigate the influence of spatial differences between 1,3-propanediol and neopentyl glycol on the material crystallinity and mechanical performance of furanoate polyesters. PPF and PNF exhibited Young's modulus of 2.5 and 3.0 GPa, respectively, and tensile strength of 100.7 and 98.0 MPa, respectively; their mechanical properties improved significantly on optimized crystallization, resulting in Young's modulus of 3.4 and 3.6 GPa, respectively, and tensile strength of 112.6 and 121.4 MPa, respectively. These results indicate that even subtle differences in the diol structure can influence the crystalline morphology and mechanical behavior of furan-based polyesters significantly, thereby offering valuable insights into the design of high-performance bio-based polymers. © 2025 The Authors

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