Poly{tris[4-(2-Thienyl)phenyl]amine} fluorescent conjugated microporous polymer for selectively sensing picric acid

Geng, Tong-Mou; Zhu, Zongming; Wang, Xie; Xia, Hongyu; Wang, Yu; Li, Dengkun

doi:10.1016/j.snb.2017.01.005

Cited by 49 publications

(34 citation statements)

References 58 publications

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“…This K sv value is higher one order than that of poly (3‐substituted thiophene) for the HCl detection. Meanwhile, P1 shows similar K sv value compared with that of poly{tris[4‐(2‐Thienyl) phenyl]amine}, which has been employed as picric acid detection. Thus, the poly(bis‐thiophene methine) would be a good candidate for acid detection.…”

Section: Resultsmentioning

confidence: 96%

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Functionalization of poly(bis‐thiophene methine)s via facile C–C bulk polymerization and their application as chemosensors for acid detection

Peng

Pei

Huang

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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Up to now, 3,4‐ethylenedioxythiophene (EDOT) or its modified analogs are indispensable units or subunits in all successful monomers for polythiophene synthesis through solid‐state polymerization (SSP). Here, a more open thiophene‐(CH(R))‐thiophene platform was developed successfully and corresponding poly(bis‐thiophene methine)s were obtained via C–C SSP or melt‐state polymerization (MSP), that is, bulk polymerization. Meanwhile, the observation of quite long effective Br–Br distance of 5.634 Å, which is more than 50% of halogen's double van der Waals radius (2rw), would help us to understand powerful capability of modulation of molecule movement and reaction under SSP. In addition, these polymers were further employed as acid sensors and they show highly sensitive response to HCl, MeSO3H, BF3‐OEt2, and HNO3. The detailed experiment reveals that P1 has the detection limit of 3.35 × 10−5 M for HCl. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 1676–1683

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Section: Resultsmentioning

confidence: 96%

“…Furthermore, it is noted that although several types of conjugated polymers have been widely used as acid or pH sensors, few polythiophenes involved is reported . In addition, it is well‐known that acid doping is a popular method for polyaniline, it is seldom used in polythiophene.…”

Section: Introductionmentioning

confidence: 99%

Functionalization of poly(bis‐thiophene methine)s via facile C–C bulk polymerization and their application as chemosensors for acid detection

Peng

Pei

Huang

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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“…We found that thin films of these disordered assemblies of fluorophores proved to be very sensitive towards NACs in aqueous media [12,13]. Indeed, we and many others have found that different fluorescent materials [14,15,16,17,18,19,20,21,22,23,24], despite their huge disparity in chemical structure, are very responsive in aqueous media towards picric acid (PA) and show no, or a small, responses to trinitrotoluene (TNT) and related nitrotoluenes. Nevertheless, it has been difficult to establish general structure-property relationships for the quenching responses of NACs that could be used to improve the performance and selectivity of the materials by rational design.…”

Section: Introductionmentioning

confidence: 99%

Fluorescent Amorphous Distyrylnaphthalene-Based Polymers: Synthesis, Characterization and Thin-Film Nanomolar Sensing of Nitroaromatics in Water

et al. 2018

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Two new fluorescent segmented conjugated polymers with either 1,4- or 2,6-distyrylnaphthalene chromophores and their model compounds were synthesized and the chemosensing abilities of the polymeric thin films to detect nitroaromatics (NACs) in aqueous media were evaluated. The structural, thermal and optical properties of the polymers were correlated with those displayed by their corresponding model compounds. Changes in the connectivity of naphthylene units caused minor differences in optical properties, morphology and quenching efficiencies. Molecular modeling highlighted the extremely bent character of polymer microstructures that explains their high solubility and amorphous character. Polymeric films are amorphous, strongly fluorescent and showed remarkable quenching efficiencies in the nanomolar range with picric acid (PA) and trinitrotoluene (TNT). Quenching experiments using either different nitroaromatic quenchers, excitation wavelengths, excitation beam path-lengths, or time of exposure of the film to the quenching solution evidenced the dominant role of inner filter effects (IFE) in the polymer response to NACs in the micromolar range. The sensing response towards PA, a quencher that strongly absorbs at the excitation wavelength, has an IFE contribution even at the nanomolar range, while the response towards the non-absorbing TNT depends only on the quenching occurring after diffusion of the analyte into the film.

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“…Meanwhile, PA is a seriously environmental pollutant, which consequently causes damage of human health and aquatic systems. [35][36][37][38][39] We expect two compounds to exhibit brilliant PA detection in aqueous medium.…”

Section: Introductionmentioning

confidence: 99%

Two AIEE-active α-cyanostilbene derivatives containing BF₂ unit for detecting explosive picric acid in aqueous medium

et al. 2019

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Poly{tris[4-(2-Thienyl)phenyl]amine} fluorescent conjugated microporous polymer for selectively sensing picric acid

Cited by 49 publications

References 58 publications

Functionalization of poly(bis‐thiophene methine)s via facile C–C bulk polymerization and their application as chemosensors for acid detection

Functionalization of poly(bis‐thiophene methine)s via facile C–C bulk polymerization and their application as chemosensors for acid detection

Fluorescent Amorphous Distyrylnaphthalene-Based Polymers: Synthesis, Characterization and Thin-Film Nanomolar Sensing of Nitroaromatics in Water

Two AIEE-active α-cyanostilbene derivatives containing BF₂ unit for detecting explosive picric acid in aqueous medium

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Poly{tris[4-(2-Thienyl)phenyl]amine} fluorescent conjugated microporous polymer for selectively sensing picric acid

Cited by 49 publications

References 58 publications

Functionalization of poly(bis‐thiophene methine)s via facile C–C bulk polymerization and their application as chemosensors for acid detection

Functionalization of poly(bis‐thiophene methine)s via facile C–C bulk polymerization and their application as chemosensors for acid detection

Fluorescent Amorphous Distyrylnaphthalene-Based Polymers: Synthesis, Characterization and Thin-Film Nanomolar Sensing of Nitroaromatics in Water

Two AIEE-active α-cyanostilbene derivatives containing BF2 unit for detecting explosive picric acid in aqueous medium

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Two AIEE-active α-cyanostilbene derivatives containing BF₂ unit for detecting explosive picric acid in aqueous medium