Synthesis and properties of poly(isosorbide 2, 5-furandicarboxylate-co-ε-caprolactone) copolyesters. (January 2020)

• Record Type: Journal Article
• Authors: Wang, Xiansong; Wang, Qingyin; Liu, Shaoying; Sun, Teng; Wang, Gongying
• Is Part Of: Polymer testing. Volume 81(2020)
• Publication Date: 2020-01
• Subjects: Poly(isosorbide 2, 5-furandicarboxylate) -- 2, 5-Furandicarboxylic acid -- Isosorbide -- ε-Caprolactone; Polymers -- Testing -- Periodicals; Polymères -- Tests -- Périodiques; 620.1920287
• DOI: 10.1016/j.polymertesting.2019.106284
• Languages: English
• ISSNs: 0142-9418

Abstract

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 1 H NMR, 13 C 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 T D, 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%. Graphical abstract: Image 1 Highlights: Bio-based poly(isosorbide 2, 5-furandicarboxylate-co-ε-caprolactone) (PIFCL) copolymers were prepared via copolymerization. PIFCL80 had a T g 72.4 °C, a Young's modulus 858 ± 92 MPa, a tensile strength 44 ± 4 MPa and an elongation as high as 480 ± 45%. All PIFCL copolyesters were amorphous with T D, 5% higher than 300 °C.