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  • AIE-active vitrimer with photoluminescence, reprocessability and shape memory effects
  • 来源:孙平川研究员个人网站 2025-03-04
  • Vitrimers with covalent adaptable networks are a class of dynamic crosslinked polymers that can be

    reprocessed and self-repaired. However, their unitary functionality and poor responsiveness to external

    stimuli limit the potential of vitrimers for applications as smart materials. Herein, we proposed a new

    strategy by constructing an aggregation-induced emission (AIE)-active vitrimer (TER) via crosslinking

    epoxy derivatives of tetraphenylethylene to form a dynamic covalent network. The activated

    intramolecular rotation of AIEgen motifs with increasing temperature endows this vitrimer with thermal

    responsive photoluminescence. 1H static and 1H–13C wideline separation SSNMR experiments were used

    to investigate the molecular motion of the TER network, providing significant implications for the RIM

    mechanism of AIE in this AIE-active vitrimer. Moreover, as a dynamic crosslinked network, TER is a

    promising versatile material with excellent photoluminescence, reshaping, reprocessing and shapememory

    properties. The AIE-active vitrimer not only represents a huge potential for further development

    of dynamic covalent polymers, but also extends the applications of vitrimers in different fields.


  • [来源:中国聚合物网]
  • 了解更多请进入: 孙平川研究员个人网站
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