Impact of impurities in 2,5-furandicarboxylic acid on the synthesis of Poly(ethylene 2,5-furandicarboxylate) and its purification by crystallization in a binary solvent system

doi:10.1016/j.cjche.2025.03.020

Chinese Journal of Chemical Engineering ›› 2025, Vol. 85 ›› Issue (9): 38-48.DOI: 10.1016/j.cjche.2025.03.020

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Impact of impurities in 2,5-furandicarboxylic acid on the synthesis of Poly(ethylene 2,5-furandicarboxylate) and its purification by crystallization in a binary solvent system

Weizhen Xie¹, Xing Zhang¹, Yue Tang¹, Xixian Ke², Tianyuan Li², Huayu Fang², Lu Lin¹, Xing Tang¹

1. Xiamen Key Laboratory of Clean and High-valued Applications for Biomass, Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass, College of Energy, Xiamen University, Xiamen 361102, China;
2. Key Lab for Sport Shoes Upper Materials of Fujian Province, Fujian Engineering and Research Center for New Functional Fiber Materials (Fujian Huafeng New Material Co., Ltd., Putian Dakai New Material Co., Ltd.), Putian 351144, China

Received:2024-10-09 Revised:2025-03-25 Accepted:2025-03-26 Online:2025-04-26 Published:2025-09-28
Contact: Lu Lin,E-mail:lulin@xmu.edu.cn;Xing Tang,E-mail:x.tang@xmu.edu.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (22378338; U22A20421), the Project for Science and Technology Plan of Fujian Province of China (2024H4007).

Impact of impurities in 2,5-furandicarboxylic acid on the synthesis of Poly(ethylene 2,5-furandicarboxylate) and its purification by crystallization in a binary solvent system

Weizhen Xie¹, Xing Zhang¹, Yue Tang¹, Xixian Ke², Tianyuan Li², Huayu Fang², Lu Lin¹, Xing Tang¹

1. Xiamen Key Laboratory of Clean and High-valued Applications for Biomass, Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass, College of Energy, Xiamen University, Xiamen 361102, China;
2. Key Lab for Sport Shoes Upper Materials of Fujian Province, Fujian Engineering and Research Center for New Functional Fiber Materials (Fujian Huafeng New Material Co., Ltd., Putian Dakai New Material Co., Ltd.), Putian 351144, China

通讯作者: Lu Lin,E-mail:lulin@xmu.edu.cn;Xing Tang,E-mail:x.tang@xmu.edu.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (22378338; U22A20421), the Project for Science and Technology Plan of Fujian Province of China (2024H4007).

Abstract

Abstract: Poly(ethylene 2,5-furandicarboxylate) (PEF), a bioplastic synthesized via the polymerization of 2,5-furandicarboxylic acid (FDCA) with ethylene glycol, can be served as a substitute to petroleum-based polyethylene terephthalate (PET) due to its enhanced material properties. However, the fabrication of PEF with stable and desirable properties is still a challenge, largely due to the impurities in FDCA. In this study, a highly efficient purification strategy for FDCA was proposed, utilizing a dioxane/H₂O binary solvent system for effective crystallization. Furthermore, PEFs were synthesized from FDCA with varying impurity and the effects of these impurities were systematically characterized. The results revealed that impurities in FDCA could result in PEFs with relatively poor thermal properties. This study provides crucial insights for the impact of impurities on PEF properties and FDCA purification.

Key words: 2,5-Furandicarboxylic acid, Poly(ethylene 2,5-furandicarboxylate), Impurities, Purification, Recrystallization, Polymerization

摘要： Poly(ethylene 2,5-furandicarboxylate) (PEF), a bioplastic synthesized via the polymerization of 2,5-furandicarboxylic acid (FDCA) with ethylene glycol, can be served as a substitute to petroleum-based polyethylene terephthalate (PET) due to its enhanced material properties. However, the fabrication of PEF with stable and desirable properties is still a challenge, largely due to the impurities in FDCA. In this study, a highly efficient purification strategy for FDCA was proposed, utilizing a dioxane/H₂O binary solvent system for effective crystallization. Furthermore, PEFs were synthesized from FDCA with varying impurity and the effects of these impurities were systematically characterized. The results revealed that impurities in FDCA could result in PEFs with relatively poor thermal properties. This study provides crucial insights for the impact of impurities on PEF properties and FDCA purification.

关键词: 2,5-Furandicarboxylic acid, Poly(ethylene 2,5-furandicarboxylate), Impurities, Purification, Recrystallization, Polymerization

Weizhen Xie, Xing Zhang, Yue Tang, Xixian Ke, Tianyuan Li, Huayu Fang, Lu Lin, Xing Tang. Impact of impurities in 2,5-furandicarboxylic acid on the synthesis of Poly(ethylene 2,5-furandicarboxylate) and its purification by crystallization in a binary solvent system[J]. Chinese Journal of Chemical Engineering, 2025, 85(9): 38-48.

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Impact of impurities in 2,5-furandicarboxylic acid on the synthesis of Poly(ethylene 2,5-furandicarboxylate) and its purification by crystallization in a binary solvent system

Impact of impurities in 2,5-furandicarboxylic acid on the synthesis of Poly(ethylene 2,5-furandicarboxylate) and its purification by crystallization in a binary solvent system

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