Synthesis of Biobased Poly(butylene Furandicarboxylate) Containing Polysulfone with Excellent Thermal Resistance Properties

Abstract

A synthetic biopolymer derived from furandicarboxylic acid monomer and hydroxyethyl-terminated poly(ether sulfone) is presented. The synthesis involves 4,4′-dichlorodiphenyl sulfone and 4,4-dihydroxydiphenyl sulfone, resulting in poly-(butylene furandicarboxylate)-poly(ether sulfone) copolyesters (PBFES) through melt polycondensation with titanium-catalyzed polymerization. This facile method yields segmented polyesters incorporating polysulfone, creating a versatile group of hightemperature thermoplastics with adjustable thermomechanical properties. The PBFES copolyesters demonstrate an impressive tensile modulus of 2830 MPa and a tensile strength of 84 MPa for PBFES55. Additionally, the poly(ether sulfone) unit imparts a relatively high glass transition temperature (T g ), ranging from 36.6 °C for poly(butylene 2,5-furandicarboxylate) to 112.3 °C for PBFES62. Moreover, the complete amorphous film of PBFES exhibits excellent transparency and solvent resistance, making it suitable for applications, such as food packaging materials.

Selective synthesis of cyclic-polymer-free poly(ether sulfone)s with OH ends or F ends by non-stoichiometric, reversible polycondensation

“…Poly(ether sulfone)s (PESs) are well-known engineering plastics and have a wide range of applications, for example as membranes for fuel cells, 1–8 in ion-exchange applications, 9–14 for separation, 15–24 for medical applications 25–27 and so on, due to their resistance to heat and chemicals. Furthermore, PES architectures, such as copolymers, 28–32 block copolymers, 33–41 star polymers, 42,43 and hyperbranched polymers, 9,44 have been synthesized and showed their specific properties. PES is generally synthesized by means of polycondensation of bisphenol and bis(halophenyl) sulfone.…”