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Sulfur- and Nitrogen-Containing Porous Donor-Acceptor Polymers as Real-Time Optical and Chemical Sensors

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    SYSNO ASEP0511002
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleSulfur- and Nitrogen-Containing Porous Donor-Acceptor Polymers as Real-Time Optical and Chemical Sensors
    Author(s) Kochergin, Y. S. (DE)
    Noda, Y. (DE)
    Kulkarni, R. (DE)
    Škodáková, Klára (UOCHB-X)
    Tarábek, Ján (UOCHB-X) RID, ORCID
    Schmidt, J. (DE)
    Bojdys, M. J. (DE)
    Source TitleMacromolecules. - : AMER CHEMICAL SOC - ISSN 0024-9297
    Roč. 52, č. 20 (2019), s. 7696-7703
    Number of pages8 s.
    Languageeng - English
    CountryUS - United States
    Keywordstriazine-based frameworks ; conjugated polymers ; protonation
    Subject RIVCD - Macromolecular Chemistry
    OECD categoryPolymer science
    Method of publishingLimited access
    Institutional supportUOCHB-X - RVO:61388963
    UT WOS000492801000017
    EID SCOPUS85073161532
    AnnotationFully aromatic, organic polymers have the advantage of being composed from light, abundant elements, and are hailed as candidates in electronic and optical devices 'beyond silicon', yet, applications that make use of their pi-conjugated backbone and optical bandgap are lacking outside of heterogeneous catalysis. Herein, we use a series of sulfur- and nitrogen-containing porous polymers (SNPs) as real-lime optical and electronic sensors reversibly triggered and reset by acid and ammonia vapors. Our SNPs incorporate donor-acceptor and donor-donor motifs in extended networks and enable us to study the changes in bulk conductivity, optical bandgap, and fluorescence lifetimes as a function of pi-electron de/localization in the pristine and protonated states. Interestingly, we find that protonated donor-acceptor polymers show a decrease of the optical bandgap by 0.42 to 0.76 eV and longer fluorescence lifetimes. In contrast, protonation of a donor-donor polymer does not affect its bandgap, however, it leads to an increase of electrical conductivity by up to 25-fold and shorter fluorescence lifetimes. The design strategies highlighted in this study open new avenues toward useful chemical switches and sensors based on modular purely organic materials.
    WorkplaceInstitute of Organic Chemistry and Biochemistry ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434
    Year of Publishing2020
    Electronic address
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