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Issue 96, 2015
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Benzodithieno-imidazole based π-conjugated fluorescent polymer probe for selective sensing of Cu2+

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Abstract

π-Conjugated polymers appended with binding sites are of considerable interest as an evolving new class of heavy and toxic metal ion sensors through fluorescence quenching. In this study we describe the synthesis and characterization of a p-bromophenyl substituted benzodithieno-imidazole based soluble and rigid π-conjugated polymer with N and S donors exhibiting outstanding sensitivity towards Cu2+ by emission quenching through photoinduced electron transfer (PET). Detailed photophysical and ion sensing studies have been demonstrated to understand insight of the polymer–metal ion interaction which is responsible for selective fluorescence quenching. The corresponding polymer is also explored as a thin-film polymeric sensor towards Cu2+ as monitored by a photoluminescence study.

Graphical abstract: Benzodithieno-imidazole based π-conjugated fluorescent polymer probe for selective sensing of Cu2+

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Publication details

The article was received on 16 Jul 2015, accepted on 10 Sep 2015 and first published on 10 Sep 2015


Article type: Paper
DOI: 10.1039/C5RA14079J
RSC Adv., 2015,5, 79011-79021

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    Benzodithieno-imidazole based π-conjugated fluorescent polymer probe for selective sensing of Cu2+

    D. Giri and S. K. Patra, RSC Adv., 2015, 5, 79011
    DOI: 10.1039/C5RA14079J

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