China Plastics ›› 2025, Vol. 39 ›› Issue (4): 14-19.DOI: 10.19491/j.issn.1001-9278.2025.04.003

• Materials and Properties • Previous Articles     Next Articles

Preparation and characterization of bio⁃based furan polyamide by interfacial polymerization

HOU Like1, ZHAO Shikun1, ZHAO Biao1, GUO Hongyuan2, DENG Jianping1, PAN Kai1()   

  1. 1.College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China
    2.Petro China Liaoyang Petrochemical Branch,Liaoyang 111003,China
  • Received:2024-06-07 Online:2025-04-26 Published:2025-04-23

Abstract:

A series of furan⁃based polyamides (PAXFs), including poly(tetramethylene furanamide) (PA4F), poly(hexamethylene furanamide) (PA6F), and poly(octamethylene furanamide) (PA8F), were synthesized using 2,5⁃furandiformyl chloride and aliphatic diamines (C=4,6,8) as raw materials through interfacial polymerization. The characterization results obtained from FTIR, NMR and GPC tests confirmed the successful preparation of PAXFs with a high molecular weight. DSC and XRD analysis results indicated that PA4F was a semi⁃crystalline polyamide, whereas PA6F and PA8F were amorphous polyamides. This result may be due to the interaction between the furan ring and furan ring in the molecular chain as well as the coplanar structure of the furan ring and butylamine units, which resulted in a more regular molecular chain and a higher crystallinity degree of PA4F. TGA and UV⁃vis spectroscopy characterization results indicated that PAXFs had good heat resistance and transparency, and its maximum thermal decomposition temperature and transmittance at 760 nm of UV visible light reached 450 ℃ and 91.1 %, respectively.

Key words: 2, 5-furandiformyl chloride, biobased furan polyamide, interfacial polymerization

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