Scholarlink

<p>Herein, organic pure room-temperature dual-phosphorescence (OPRDP) elastomers are prepared by radical copolymerization of pyromellitic diimide derivative (BrPMDI), 2-(2-methoxyethoxy)ethyl methacrylate, and acryloylated cyclodextrin (CD), exhibiting excellent resistance to water, acid, alkali, microbiome rich lake, and salt-rich seawater. By tuning a mass ratio of chromophore from 0.5% (BrPMDI-0.5) to 5% (BrPMDI-5) in elastomer, single-molecule BrPMDI gradually aggregates via π-03C0 stacking, leading to dual-phosphorescence emissions of green pure room-temperature phosphorescence (RTP) at 500 nm (τ= 0.19 ms) and orange pure RTP at 580 nm (τ= 3.5 ms), respectively. Compared to the high ratio BrPMDI-5, CD cross-linking inducing the low ratio BrPMDI-0.5 to form a denser polymer not only enhances stretchable mechanical strength, but also promotes phosphorescence emission in water. As a result, bright green and orange phosphorescence from BrPMDI-0.5@CD and BrPMDI-5 elastomers can exist in different water environments, and are successfully applied in underwater anti-counterfeiting, providing a feasible pathway to construct underwater OPRDP materials.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Tunable organic pure dual-phosphorescence emissions based on pyromellitic diimide copolymer

  • 期刊论文

  • 发表日期：

    2025年6月27日

查看全文
  • Wen-Wen Xu,
  • Pei-Ao Sun,
  • Yong Chen,
  • Bao-Tong Huang,
  • Xiufang Xu,
  • Yu Liu

摘要

Herein, organic pure room-temperature dual-phosphorescence (OPRDP) elastomers are prepared by radical copolymerization of pyromellitic diimide derivative (BrPMDI), 2-(2-methoxyethoxy)ethyl methacrylate, and acryloylated cyclodextrin (CD), exhibiting excellent resistance to water, acid, alkali, microbiome rich lake, and salt-rich seawater. By tuning a mass ratio of chromophore from 0.5% (BrPMDI-0.5) to 5% (BrPMDI-5) in elastomer, single-molecule BrPMDI gradually aggregates via π-03C0 stacking, leading to dual-phosphorescence emissions of green pure room-temperature phosphorescence (RTP) at 500 nm (τ= 0.19 ms) and orange pure RTP at 580 nm (τ= 3.5 ms), respectively. Compared to the high ratio BrPMDI-5, CD cross-linking inducing the low ratio BrPMDI-0.5 to form a denser polymer not only enhances stretchable mechanical strength, but also promotes phosphorescence emission in water. As a result, bright green and orange phosphorescence from BrPMDI-0.5@CD and BrPMDI-5 elastomers can exist in different water environments, and are successfully applied in underwater anti-counterfeiting, providing a feasible pathway to construct underwater OPRDP materials.