[O2-5]
우수논문발표상 응모자Designing a fully Bio-Based Copolyester from 2,5-Furandicarboxylic Acid: Linking Molecular Structure to Stiff but Elastic Properties
발표자최세훈 (충남대학교)
연구책임자구준모 (충남대학교)
Abstract
Mechanical stiffness and elastic recovery are often difficult to achieve simultaneously due to conflicting structural requirements. Here, we present a fully bio-based copolyester, poly(propylene-co-cyclohexanedimethylene furanoate) (PPCF), that overcomes this challenge. Polar aromatic 2,5-furandicarboxylic acid units impart high rigidity, while the asymmetric molecular structure enables elastic potential. Consequently, PPCF exhibits a Young’s modulus of 2785 MPa, tensile strength of 69.8 MPa, and notched impact strength of 142.7 J·m⁻¹, comparable to engineering plastics. Notably, PPCF recovers its shape at 65 °C, below its glass transition temperature, even after plastic deformation beyond the yield point. These findings highlight PPCF as a sustainable, high-performance polymer combining mechanical strength and recoverability for advanced applications.