• Tetraphenylethylene-based fluorescent conjugated microporous polymers for fluorescent sensing trinitrophenol

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    • Keywords


      Conjugated microporous polymer; fluorescence sensor; trinitrophenol; tetraphenylethylene; dinitrophenol.

    • Abstract


      Two tetraphenylethylene-based fluorescent conjugated microporous polymers (TTTPT and TTDAT) were obtained by the Friedel-Crafts polymerization reactions catalysed by CH$_3$SO$_3$H. In virtue of containing tetraphenylethylene,triphenylamine and s-triazine units in their porous skeletons, the resulting TTTPT and TTDAT show excellent fluorescence sensing performance for trinitrophenol (TNP) with high quenching coefficients of 1.66 ${\times}$ 10$^4$ and 1.31 ${\times}$ 10$^5$ l mol$^{–1}$, respectively. TTDAT can also sense to dinitrophenol (DNP) with the Ksv of 2.70 ${\times}$ 10$^4$ l mol$^{–1}$. The fluorescent quenching mechanisms of TTTPT and TTDAT for selective detecting TNP attribute to conventional photoinduced electron-transfer mechanism, absorption competition quenching mechanism and/or the resonant energy transfer mechanism.

    • Author Affiliations



      1. Department of Pharmacy, Anqing Medical College, Anqing 246052, China
      2. AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing 246011, China
    • Dates

  • Bulletin of Materials Science | News

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