Molecular Conformation and Crystallization Behavior of Bifuran-based Polyesters

Wen-Ting Li; Le Shen; Guang-Jian Liao; Hai Wang; Bi-Jin Xiong; Guo-Chuan Yin; Yong-Gui Liao; Jin-Tao Zhu; Xiao-Lin Xie

doi:10.1007/s10118-026-3824-1

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Molecular Conformation and Crystallization Behavior of Bifuran-based Polyesters

RESEARCH ARTICLE | Updated：2026-10-10

- Molecular Conformation and Crystallization Behavior of Bifuran-based Polyesters
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-10(2026)
- Affiliations：
  
  a.Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  b.Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
  c.Department of Polymer Science and Engineering, College of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Author bio：
  
  bjxiong@hust.edu.cn (B.J.X.)
  ygliao@mail.hust.edu.cn (Y.G.L.)
- Funds：
- DOI：10.1007/s10118-026-3824-1
  CLC：
- Received：12 June 2026，
  
  Accepted：20 July 2026，
  
  Online First：10 October 2026，
  
  Published：2026-09
- Accepted：
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Li, W. T.; Shen, L.; Liao, G. J.; Wang, H.; Xiong, B. J.; Yin, G. C.; Liao, Y. G.; Zhu, J. T.; Xie, X. L. Molecular conformation and crystallization behavior of bifuran-based polyesters. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3824-1

Wen-Ting Li, Le Shen, Guang-Jian Liao, et al. Molecular Conformation and Crystallization Behavior of Bifuran-based Polyesters[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10.
Li, W. T.; Shen, L.; Liao, G. J.; Wang, H.; Xiong, B. J.; Yin, G. C.; Liao, Y. G.; Zhu, J. T.; Xie, X. L. Molecular conformation and crystallization behavior of bifuran-based polyesters. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3824-1 DOI：

Wen-Ting Li, Le Shen, Guang-Jian Liao, et al. Molecular Conformation and Crystallization Behavior of Bifuran-based Polyesters[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10. DOI： 10.1007/s10118-026-3824-1.

摘要

Abstract

The utilization of dimethyl 2

2'-bifuran-5

5'-dicarboxylate (BFDCE) as a rigid unit to prepare biomass-derived polyesters has garnered substantial interest

owing to its exceptional thermal stability and excellent mechanical performance. To date

the conformational ordering for crystallization of bifuran-based polyesters is still unclear. Herein

a series of bifuran-based polyesters (PBF

where

=5–9 represents the number of methylene groups in the aliphatic diols) is synthesized

via

melt polycondensation using BFDCE and diols. Their crystallization behavior and mechanical performance show a distinct odd-even effect. Despite the restricted chain mobility induced by the rigid bifuran units

the even-numbered PBF6 and PBF8 with a well-defined spherulitic structure exhibit a high crystallinity of 83% and

73%

respectively. In contrast

the odd-numbered PBF5

PBF7

and PBF9 remain amorphous upon melt crystallization. As a result

the crystallized samples show superior tensile strength

while the amorphous counterparts exhibit remarkable ductility. Specifically

PBF6 achieves an exceptional elongation at break of 466% coupled with a tensile strength of 43.7 MPa. These bifuran-based polyesters can serve as sustainable

high-performance alternatives to petroleum-derived polymers

with potential applications in automotive components and other fields requiring tunable material properties.

关键词

Keywords

references

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