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首页> 外文期刊>RSC Advances >Conjugated polymers containing tetraphenylethylene in the backbones and side-chains for highly sensitive TNT detection
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Conjugated polymers containing tetraphenylethylene in the backbones and side-chains for highly sensitive TNT detection

机译：在主链和侧链中包含四苯基乙烯的共轭聚合物，用于高灵敏度TNT检测

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The novel polytriphenylamines derivatives PTPA1-TPE and PTPA2-TPE with TPE as side groups and bis( tert -butyl)-TPE in the backbones have been successfully synthesized via Yamamoto-type coupling under microwave heating. The incorporation of TPE units in the backbones and side-chains endows the polymers with a distinct AIE effect and high fluorescence quantum yields in the solid state. Meanwhile, nitroaromatic explosive detection based on dispersed, electron-rich PTPA1-TPE and PTPA2-TPE nanoaggregates in THF/water was carried out. Both of them show high sensitivity towards the TNT analyte, with a maximum Stern–Volmer quenching constant K _(sv) of up to 8.3 × 10 ~(4) M ~(?1) . In addition, the paper strip test demonstrates the promising practical application of the polymers as solid state sensors towards PL-based nitroaromatic explosive detection.
机译：通过山本型偶联在微波加热下成功合成了以TPE为侧基和骨架为双（叔丁基）-TPE的新型聚三苯胺衍生物PTPA1-TPE和PTPA2-TPE。 TPE单元在主链和侧链中的引入使聚合物具有独特的AIE效应和固态时的高荧光量子产率。同时，进行了基于分散的，富电子的PTPA1-TPE和PTPA2-TPE纳米聚集体在THF /水中的硝基芳族爆炸物检测。两者均显示出对TNT分析物的高灵敏度，最大Stern–Volmer猝灭常数K _（sv）高达8.3×10〜（4）M〜（？1）。此外，纸条测试证明了聚合物作为固态传感器在基于PL的硝基芳族爆炸物检测中的有希望的实际应用。

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