| 초록 |
Semi-aromatic polyamides are well known as thermoplastic engineering polymer materials having superior thermal stability and mechanical properties than aliphatic polyamides, and better processability than wholly aromatic polyamides. Due to these advantages, semi-aromatic polyamides such as poly(hexamethylene terephthalamide), poly(hexamethylene isophthalamide), and their copolymers have been widely investigated. On the other hand, 2,5'-furandicarboxylic acid (FDCA), a renewable source-based compound, is considered an aromatic substituent for fossil fuel-based aromatic diacid monomers in the production of semi-aromatic polyamides. In this study, a series of semi-aromatic polyamides based on FDCA and aliphatic diamines were synthesized using a direct solid-state polycondensation reaction. The intrinsic viscosity and solubility were investigated in various organic solvents. The molecular structure, thermal and mechanical properties were analyzed using NMR, FT-IR, XRD, TGA, DSC, and DMA. |
