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Clickable Polymerization-Induced Emission Luminogens Toward Color-Tunable Modification of Non-Traditional Intrinsic

Xiao-Li Sun1, Hong Xue1, Xi-Yao Gu1

  • 1College of Environmental and Resource Sciences, Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fujian Normal University, Fuzhou, 350007, P. R. China.

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Researchers developed color-tunable non-traditional intrinsic luminescent (NTIL) polymers using click chemistry. This approach introduces clickable polymerization-induced emission luminogens (PIEgens) for novel luminescent materials.

Keywords:
aggregation‐induced emissionclick chemistryluminescent polymernon‐traditional intrinsic luminescencepolymerization‐induced emission

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Organic Chemistry

Background:

  • Non-traditional intrinsic luminescent (NTIL) polymers are an emerging class of materials.
  • Color-tunable modification of NTIL polymers is highly desirable but underexplored.
  • Click chemistry offers a versatile platform for polymer functionalization.

Purpose of the Study:

  • To develop a color-tunable modification strategy for NTIL polymers.
  • To synthesize novel clickable polymerization-induced emission luminogens (PIEgens).
  • To demonstrate the utility of click chemistry in creating tunable luminescent polymers.

Main Methods:

  • Synthesis of PIEgens via Cu-catalyzed azide-alkyne cycloaddition (click chemistry).
  • Polymerization of PIEgens using reversible addition-fragmentation chain transfer (RAFT) polymerization.
  • Characterization of monomer and polymer luminescence properties, including aggregation-induced emission (AIE).

Main Results:

  • Synthesized a series of clickable PIEgens that are nonemissive as monomers but exhibit AIE as polymers.
  • Achieved color-tunable NTIL polymers with emission wavelengths ranging from 448 to 498 nm by varying alkynyl substitutions.
  • Demonstrated a luminescence energy transfer application using the developed polymers.

Conclusions:

  • A click chemistry approach successfully enabled color-tunable modification of NTIL polymers.
  • The developed PIEgens and polymers exhibit promising AIE characteristics and tunable emission.
  • This work opens new avenues for NTIL polymer modification and luminescent material design.