Synthesis and properties of poly(isosorbide 2,5-furandicarboxylate-co-ε-caprolactone) copolyesters |
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| Institution: | 1. Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Al. Piastów 19, PL 70-310 Szczecin, Poland;2. Polymer Technology Group/Eindhoven (PTG/e) B.V., De Lismortel 31, 5612 AR Eindhoven, The Netherlands;3. Department of Civil, Chemical, Environmental, and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy;4. Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125 Catania, Italy |
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| Abstract: | Bio-based poly(isosorbide 2,5-furandicarboxylate-co-ε-caprolactone) (PIFCL) copolyesters were synthesized from 2,5-furandicarboxylic acid, isosorbide and ε-caprolactone. The obtained copolyesters were characterized by 1H NMR, 13C NMR, intrinsic viscosity, GPC, DSC, TGA and tensile testing. The NMR characterization results confirmed the insertion of lactones units into poly(isosorbide 2,5-furandicarboxylate) (PIF) chains. All PIFCL copolyesters were amorphous with TD, 5% higher than 300 °C. The glass transition temperatures of PIFCLs with FDCA molar ratio from 74% to 45% were within the range of 132.1 °C and 72.4 °C. Tensile testing revealed that introduction of ε-caprolactone into PIF chain imparted PIFCL with excellent mechanical performance, typically, PIFCL polyseter with FDCA molar ratio of 45% had a Young's modulus 858 ± 92 MPa, a tensile strength 44 ± 4 MPa and an elongation at break 480 ± 45%. |
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| Keywords: | Poly(isosorbide 2 5-furandicarboxylate) 2 5-Furandicarboxylic acid Isosorbide ε-Caprolactone |
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