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<p>High molecular weight poly(1,4-butylene 2,5-furandicarboxylate-co-isosorbide 2,5-furandicarboxylate) copolyesters (PBSIF-<i>x</i>) were synthesized via melt-polycondensation of 2,5-furandicarboxylic acid (FDCA), with varying ratios of isosorbide (ISB) and 1,4-butylene glycol (BDO) catalyzed by antimony trioxide (Sb<sub>2</sub>O<sub>3</sub>). The PBSIF<i>-x</i> structures were investigated using FTIR and <sup>1</sup>H NMR, while the GPC analysis exhibited the copolyesters molecular weights with number average molecular mass (<i>M</i><sub>n</sub>) in the range of 11 079–15 153 g/mol. The DSC results show that PBSIF-<i>x</i> copolyesters have a single glass-transition temperature (<i>T</i><sub>g</sub>) (77.45–110.96 °C), increasing with the increase in ISB content, while TGA analysis demonstrates excellent thermal stability up to 320 °C. From the thermal result, properties of PBSIF-<i>x</i> copolyesters are found to be within the interval of their parent homologues poly(butylene 2,5-furandicarboxylate) (PBF) and poly(isosorbide 2,5-furandicarboxylate) (PIF), which confirms the aromatic/aliphatic blending within the polymer matrix for enhanced polymer stability and performance.</p>

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Synthesis and Characterization of Poly(1,4-butylene 2,5-furandicarboxylate-co-isosorbide 2,5-furandicarboxylate)

  • 期刊论文

  • 发表日期：

    2025年4月14日

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  • Mengyi Zhang,
  • Zhengzai Cheng,
  • Mian Yang,
  • Qianwen Yu,
  • Zhiping Tan,
  • Lesly Dasilva Wandji Djouonkep,
  • Junpeng Cheng,
  • Panpan Liu,
  • Ling Ding,
  • Mario Gauthier

摘要

High molecular weight poly(1,4-butylene 2,5-furandicarboxylate-co-isosorbide 2,5-furandicarboxylate) copolyesters (PBSIF-x) were synthesized via melt-polycondensation of 2,5-furandicarboxylic acid (FDCA), with varying ratios of isosorbide (ISB) and 1,4-butylene glycol (BDO) catalyzed by antimony trioxide (Sb2O3). The PBSIF-x structures were investigated using FTIR and 1H NMR, while the GPC analysis exhibited the copolyesters molecular weights with number average molecular mass (Mn) in the range of 11 079–15 153 g/mol. The DSC results show that PBSIF-x copolyesters have a single glass-transition temperature (Tg) (77.45–110.96 °C), increasing with the increase in ISB content, while TGA analysis demonstrates excellent thermal stability up to 320 °C. From the thermal result, properties of PBSIF-x copolyesters are found to be within the interval of their parent homologues poly(butylene 2,5-furandicarboxylate) (PBF) and poly(isosorbide 2,5-furandicarboxylate) (PIF), which confirms the aromatic/aliphatic blending within the polymer matrix for enhanced polymer stability and performance.