Aggregation Induced Emission (AIE)‐Active Poly(acrylates) for Electrofluorochromic Detection of Nitroaromatic Compounds

Two aggregation induced emission (AIE)‐active poly(acrylates) bearing triphenylvinyl‐functionalized phenylcarbazole and triphenylamine pendants, respectively, were synthesized. Their fluorescence response to nitroaromatics and electrofluorochromic (EFC) properties were studied, whereby both the pres...

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Bibliographic Details
Published in:ChemPhotoChem 2022-11, Vol.6 (11), p.n/a
Main Authors: Chua, Ming Hui, Chin, Kang Le Osmund, Ang, Shi Jun, Soo, Xiang Yun Debbie, Png, Zhuang Mao, Zhu, Qiang, Xu, Jianwei
Format: Article
Language:English
Subjects:
aggregation induced emission
electrofluorochromism
explosive detection
fluorescent sensors
nitroaromatics detection
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Summary:Two aggregation induced emission (AIE)‐active poly(acrylates) bearing triphenylvinyl‐functionalized phenylcarbazole and triphenylamine pendants, respectively, were synthesized. Their fluorescence response to nitroaromatics and electrofluorochromic (EFC) properties were studied, whereby both the presence of nitroaromatics and applied voltages led to fluorescence quenching. In a very first attempt to perform EFC detection of nitroaromatics, it was surprisingly found that after initial fluorescence quenching, the presence of nitroaromatics unexpectedly turned on fluorescence at high applied voltages (>+1.0 V), demonstrating a promising approach for the EFC detection of nitroaromatic explosives. Explosive detection: Novel AIE‐active poly(acrylates) were prepared for both electrofluorochromic applications and nitroaromatics detection. An unusual fluorescence turn‐on was however observed during an attempted electrofluorochromic sensing of nitroaromatic compounds performed with the triphenylamine‐based poly(acrylate), opening up possibilities and future opportunities for the development in EFC‐sensing of nitroaromatic explosives based on this phenomenon.
ISSN:2367-0932
2367-0932
DOI:10.1002/cptc.202200168