Sensitized Mechanoluminescence Design toward Mechanically Induced Intense Red Emission from Transparent Polymer Films,Macromolecules

当前位置： X-MOL 学术 › Macromolecules › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Sensitized Mechanoluminescence Design toward Mechanically Induced Intense Red Emission from Transparent Polymer Films
Macromolecules ( IF 5.1 ) Pub Date : 2020-02-03 , DOI: 10.1021/acs.macromol.9b02221
Fan Yang _{1,

2} , Yuan Yuan _{1,

2} , Rint P. Sijbesma ₃ , Yulan Chen _{1,

2}

Affiliation

Mechanoresponsive polymers with intense red emission are highly desirable in view of the strong penetrability and high resolution of red luminescence. Herein we introduce the sensitized luminescence of rare-earth Eu(III) complexes into the mechanochemiluminescence from polymeric dioxetane in a covalent way. By controlling the energy-transfer process from mechanically broken dioxetane to the Eu(III) center, bright red emission from transparent poly(methyl acrylate) films was achieved for the first time. Importantly, mechanoluminescence sensitivity is greatly improved, enabling the location and timing of bond scission with high resolution. A sensitive stretchable device with the polymer film as an emissive layer was fabricated by a facile surface-engineering method, which can emit patterned red light upon deformation. This sensitized mechanoluminescence design thus expands the useful space of luminescent stress probes.

中文翻译：

机械致敏的透明聚合物膜机械致发光设计，用于机械诱导的强烈红色发射。

鉴于强烈的渗透性和红色发光的高分辨率，非常需要具有强烈红色发射的机械响应性聚合物。在这里，我们以共价方式将稀土Eu（III）配合物的敏化发光引入高分子二氧杂环丁烷的机械发光中。通过控制从机械断裂的二氧杂环丁烷到Eu（III）中心的能量转移过程，首次实现了透明聚丙烯酸甲酯薄膜的鲜红色发射。重要的是，机械发光敏度大大提高了，可以以高分辨率实现键断裂的位置和时间。通过简便的表面工程方法制造了以聚合物膜为发射层的灵敏可拉伸设备，该设备在变形时可以发出图案化的红光。

更新日期：2020-02-03

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南