Synthesis of High Thermal-Resistant Poly(ester-ether) Elastomers from Bio-Based 2,5-Furandicarboxylic Acid

Abstract

Thermoplastic poly­(ester-ether) elastomers (TPEEs) have been applied extensively in automotive components, electrics, medical, and other fields. However, TPEEs with high thermal resistance and shape recovery rate are rarely reported, especially the ones derived from renewable feedstocks. Herein, the renewable 2,5-furandicarboxylic acid (FDCA) and 1,4-cyclohexanedimethanol were taken to construct the hard segment, while poly­(tetramethylene glycol) (PTMG) was employed as the soft segment to synthesize poly­(ester-ether) elastomers (PCF–PTMG). Investigation showed that PCF–PTMG had excellent thermal resistance with T m up to 254 °C, which was higher than most of the commercial TPEEs. By adjusting the content of the PTMG segment from 30 to 80 wt %, the tensile strength of synthesized TPEEs increased from 31 to 303 MPa and tensile modulus varied in the range of 17 to 27 MPa. More importantly, PCF–PTMG70, containing 70 wt % of the PTMG segment, showed the elongation at break of 676% and shape recovery rate as high as 77.4% during the first cyclic test at 200% strain, which are higher than those of almost all the TPA-based TPEEs. This work indicates that a bio-based FDCA unit has great potential to serve as a highly crystallizable hard segment, as well as PTMG content adjusted the contribution of the soft segments to synthesize the new poly­(ester-ether) elastomers with high thermal resistance.

High-Performance Biobased Elastomers with Both High Strength and High Toughness

“…Literature studies suggest that the PA-BP 40 elastomer exhibits significant advantages in both tensile strength and toughness among the reported biobased and filled biobased elastomers and even excels in the field of polyamide elastomers (Figure c and Table S3). ,− ,− …”

“…Hitherto, high-performance poly­(oxalamide) elastomers, characterized by their exceptional strength and toughness, have rarely been reported because strong HB interaction may result in excessive supramolecular aggregation . Besides, other sustainable compounds, such as methyl 10-undecenoate, ,− 2,5-furandicarboxylic acid, , itaconic acid, , 1,3-propanediol, fumaric Acid, Priamine 1075 and Pripol 1009, thermoplastic starch, , cellulose, lignin etc., have also been used in the design and preparation of TPEs. Although considerable progress has been made in the manufacture of sustainable TPEs, simultaneously achieving mechanical robustness and toughness in biobased TPEs continues to pose a significant challenge.…”

Facile Sustainable Synthesis of Polyester-Polycarbonate and Effects of the Carbonate on Thermal, Mechanical, and Transparency Properties

“…The composition of PCCTs is determined by the peaks from 4.19 to 4.51 ppm. The b cis and b trans peaks at 4.57 and 4.40 ppm belonged to –CH 2 – of the cis -CHDM and trans -CHDM covalently linked to terephthalate, respectively, and the peaks of –CH 2 – linked to carbonate are located at 4.31 and 4.19 ppm by the arrangement order of specific proton atoms. − The molar content of DMC (φ C*C ) and DMT (φ TC ) is determined from the integrated intensities of peaks b and c, using eqs and . φ normalC * normalC [ mol % ] = ( I normalc / I normalb + I normalc ) × 100 % φ TC [ mol % ] = 1 − φ C [ mol % ] …”

Flexible preparation of PA6-based thermoplastic elastomer filaments with enhanced elasticity, melt spinnability and transparency enabled by high-molecular-weight soft segments

“…10 A linear function of tensile properties and the hard phase content for LS-TPAEs have been observed in many studies. 26 Considering the structural differences between LS-TPAEs and HS-TPAEs, as well as the strong straininduced crystallizability of high-molecular-weight PTMG segments, [33][34][35] we may infer that the lower tensile strength and elongation at break of HS-TPAE-60 and HS-TPAE-70, compared with HS-TPAE-55, are related to their strain-induced crystallizability of the soft segments. 36 Due to the well-defined phase-separated morphology, excellent recoverable affine deformation and high elastic recovery (ER) at a specified strain are excepted.…”