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Issue 37, 2018
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Tri-pillar[5]arene-based multi-stimuli-responsive supramolecular polymers for fluorescence detection and separation of Hg2+

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Abstract

A novel tripodal organic gelator (JP5) decorated with three pillar[5]arene tails was designed, synthesized and thoroughly characterized. The stable supramolecular polymer JP5G was obtained within 0.5 minutes by the self-assembly of gelator JP5 in cyclohexanol via C–H⋯π, π⋯π stacking, vdW forces and hydrogen bonding interactions. Interestingly, the supramolecular polymer JP5G showed strong aggregation-induced emission (AIE) and could respond to multiple external stimuli. Simultaneously, JP5G presented special selectivity and high sensitivity for Hg2+; the fluorescence detection limit of JP5G for Hg2+ is 1.02 × 10−8 M. In addition, the JP5G xerogel could effectively remove Hg2+ from water. What's more, a thin film based on the supramolecular polymer (JP5G) was prepared that could act as a convenient test kit for the detection of Hg2+. The use of tri-pillar[5]arene to construct a tripodal pillar[5]arene-based organic gelator constitutes a novel and efficient method for the design and synthesis of novel functional supramolecular polymers.

Graphical abstract: Tri-pillar[5]arene-based multi-stimuli-responsive supramolecular polymers for fluorescence detection and separation of Hg2+

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Publication details

The article was received on 24 Jul 2018, accepted on 24 Aug 2018 and first published on 24 Aug 2018


Article type: Paper
DOI: 10.1039/C8PY01085D
Polym. Chem., 2018,9, 4625-4630

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    Tri-pillar[5]arene-based multi-stimuli-responsive supramolecular polymers for fluorescence detection and separation of Hg2+

    X. Jiang, X. Huang, S. Song, X. Ma, Y. Zhang, H. Yao, T. Wei and Q. Lin, Polym. Chem., 2018, 9, 4625
    DOI: 10.1039/C8PY01085D

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