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Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (7): 20260030.doi: 10.7503/cjcu20260030

• Polymer Chemistry • Previous Articles     Next Articles

Molecular Design, Synthesis and Characterization of Bio-based Acetosyringone-derived Poly(aryl ether ketone)s

PANG Yiying, HAN Jianhua, ZONG Lishuai, WANG Jinyan(), JIAN Xigao   

  1. Department of Polymer Materials,Dalian University of Technology,Dalian 116024,China
  • Received:2026-01-13 Online:2026-07-10 Published:2026-04-28
  • Contact: WANG Jinyan E-mail:wangjinyan@dlut.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(52273005)

Abstract:

A novel oxygen heterocyclic pyridazinone monomer 6-(4-hydroxy-3,5-dimethoxyphenye)pyridazin-3(2H)- one(AGPZ) derived from the biobased compound acetosyringone was synthesized. Theoretical simulations of the phenoxide anions of AGPZ and the previously reported guaiacol-derived monomer 6-(4-hydroxy-3-methoxyphenyl) pyridazin-3(2H)-one(GSPZ) were conducted using Materials Studio. Comparative analysis reveals that the electrostatic potential extremum at the phenoxide anion of GSPZ is lower, indicating that the nucleophilic substitution activity of AGPZ is lower than that of GSPZ. Nevertheless, the successful synthesis of an AGPZ model compound confirmed that AGPZ still possesses sufficient nucleophilic substitution reactivity. A series of biobased poly(aryl ether ketone), named as PAFEKKs, was synthesized through ternary copolymerization of AGPZ with the 2,5-bis(4-fluorobenzoyl)furan(BFBF) and 9,9-bis(4-hydroxyphenyl)fluorene(BHPF). The synthesized PAFEKKs show a glass transition temperature(Tg, ℃) in the range of 217—226 °C and a 5% mass loss decomposition temperature(Td,5%, ℃) between 419 and 474 °C, demonstrating excellent thermal stability. Furthermore, PAFEKKs exhibit good solubility, readily dissolving in most common organic solvents at room temperature. This synthetic method strategy utilizing biomass- derived monomers offers a molecular design and synthetic route for biobased resins, presenting a promising avenue for the development of sustainable monomers and polymers with diverse structural architectures.

Key words: Biobased polymer material, Poly(aryl ether ketone)s, Acetosyringone, Molecular structure and performance

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