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<p>High-performance sustainable elastomers with tunable fluorescent behavior designed via robust and facile strategies are highly pursued. In this work, cellulose-<i>graft</i>-poly(tetrahydrofurfuryl acrylate-<i>co</i>-2-(methacryloyloxy)ethyl acetoacetate) (Cell-<i>g</i>-P(THFA-<i>co</i>-AAEM)) copolymers with different compositions were prepared through homogeneous reversible addition-fragmentation chain transfer (RAFT) polymerization. In this design, cellulose acts as the backbone, while the hemicellulose derivative tetrahydrofurfuryl acrylate (THFA) and the petroleum-based monomer 2-(methacryloyloxy)ethyl acetoacetate (AAEM) play the role of soft and rigid segments in the grafted side chains. By tuning the THFA/AAEM feed ratio and cellulose content, the mechanical and adhesion properties of these Cell-<i>g</i>-P(THFA-<i>co</i>-AAEM) copolymers were well manipulated. In addition, the <i>β</i>-diketone groups in THFA repeating units can be further used as the ligands to form dynamic networks in the copolymer matrix with terbium (Tb<sup>3+</sup>) and europium (Eu<sup>3+</sup>) ions via lanthanide coordination. The resulting coordinated Cell-<i>g</i>-P(THFA-<i>co</i>-AAEM) copolymers exhibit significantly improved tensile strength and tunable fluorescent colors by adjusting the Tb<sup>3+</sup>/Eu<sup>3+</sup> ratio. The combination of bio-based resources and lanthanide coordination can be further performed to achieve strong sustainable elastomers with improved macroscopic mechanical properties and unique fluorescent behavior.</p>

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Preparation of cellulose-based fluorescent elastomers via RAFT polymerization and lanthanide coordination

  • 期刊论文

  • 发表日期：

    2025年10月11日

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  • Rui Hu,
  • Anjia Zheng,
  • Cancan Zhang,
  • Chuanxi Wang,
  • Jiaming Zhang,
  • Chongxiao Ge,
  • Qing Li,
  • Bin Zhang,
  • Feng Jiang

摘要

High-performance sustainable elastomers with tunable fluorescent behavior designed via robust and facile strategies are highly pursued. In this work, cellulose-graft-poly(tetrahydrofurfuryl acrylate-co-2-(methacryloyloxy)ethyl acetoacetate) (Cell-g-P(THFA-co-AAEM)) copolymers with different compositions were prepared through homogeneous reversible addition-fragmentation chain transfer (RAFT) polymerization. In this design, cellulose acts as the backbone, while the hemicellulose derivative tetrahydrofurfuryl acrylate (THFA) and the petroleum-based monomer 2-(methacryloyloxy)ethyl acetoacetate (AAEM) play the role of soft and rigid segments in the grafted side chains. By tuning the THFA/AAEM feed ratio and cellulose content, the mechanical and adhesion properties of these Cell-g-P(THFA-co-AAEM) copolymers were well manipulated. In addition, the β-diketone groups in THFA repeating units can be further used as the ligands to form dynamic networks in the copolymer matrix with terbium (Tb3+) and europium (Eu3+) ions via lanthanide coordination. The resulting coordinated Cell-g-P(THFA-co-AAEM) copolymers exhibit significantly improved tensile strength and tunable fluorescent colors by adjusting the Tb3+/Eu3+ ratio. The combination of bio-based resources and lanthanide coordination can be further performed to achieve strong sustainable elastomers with improved macroscopic mechanical properties and unique fluorescent behavior.