Synthesis of 2,5-furandicarboxylic acid-based biodegradable copolyesters with excellent gas barrier properties composed of various aliphatic diols

Qianfeng Wang, Jinggang Wang, Yunxiao Dong, Xiaoqin Zhang, Han Hu, Lionel OYoung, Di Hu, Jin Zhu

Research output: Journal PublicationArticlepeer-review

9 Citations (Scopus)

Abstract

Copolyesters based on 2,5-furandicarboxylic acid (FDCA) have attracted particular attention due to their outstanding gas barrier properties and biodegradability compared with commodity degradable polymers. This study provides the first comprehensive assessment of the effect of the segmental lengths of aliphatic diols on the properties of FDCA-based copolyesters. A series of poly(alkylene adipate-co-furanoate) (PAAF) copolyesters comprised of different aliphatic diols were prepared via melt polycondensation reaction and their comprehensive properties, including thermal properties, mechanical properties, gas barrier properties, degradability, and antibacterial activities were thoroughly investigated. NMR and GPC results confirm the successful synthesis of high-molecular-weight random copolyesters (their Mw varies from 67,500 to 126,500 g·mol−1). The glass transition temperatures (Tg) of PAAFs decreases with increasing diol segmental lengths whereas a zig-zag variation in the melting temperatures (Tm) is observed due to the odd–even effect. All PAAFs exhibit good ductility and excellent mechanical properties with tensile moduli between 27 and 102 MPa. The gas barrier performances of PAAFs are 2.1 to 13.4 folds for O2 and 2.4 to 13.6 folds for CO2 better than those of poly(butylene adipate-co-terephthalate) (PBAT), respectively. All PAAFs can be rapidly biodegraded within 25 days under enzymatic hydrolysis conditions.

Original languageEnglish
Article number111677
JournalEuropean Polymer Journal
Volume181
DOIs
Publication statusPublished - 5 Dec 2022

Keywords

  • 2,5-furandicarboxylic acid (FDCA)
  • Aliphatic diols
  • Biodegradable polyesters
  • Gas barrier properties

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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