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Combinatorial synthesis of soluble conjugated polymeric nanoparticles and tunable multicolour fluorescence sensing

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Abstract

A combinatorial polymerization method has been exploited to prepare a library of soluble conjugated polymeric nanoparticles (SCPNs) through palladium catalyzed polycondensations in confined nanoreactors. The strategy of independent variation within two complementary families of simple and symmetrical monomers, Ax and By (x > 2, y ≥ 2), plus post-polymerization modification with variant terminal groups greatly increases the number of polymers and improves the efficiency of polymer preparation. Fluorescence properties (band gap) of the SCPNs are easily tuned by selecting the monomer units (A or B) and the terminal (T) substituents through this “TABulated synthesis” method, providing fluorescent polymers that cover the whole visible spectrum, from blue to red. This library of SCPNs is further utilized for multicolor fluorescence sensing of explosives, showing a high Stern–Volmer quenching constant (Ksv). Meanwhile, the Ksv values of the SCPNs were mapped with the variation of the T, A, and B building blocks to predict the possible SCPN member with the optimal Ksv value (Ksv up to 1.2 × 105 M−1), showing the academic significance of this method. We believe that such a combinatorial “TAB” strategy provides a straightforward method to quickly synthesize libraries of polymeric nanoparticles, which will promote widespread studies on the functional materials in interdisciplinary fields.

Graphical abstract: Combinatorial synthesis of soluble conjugated polymeric nanoparticles and tunable multicolour fluorescence sensing

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Supplementary files

Publication details

The article was received on 23 Jul 2017, accepted on 22 Aug 2017 and first published on 22 Aug 2017


Article type: Paper
DOI: 10.1039/C7PY01233K
Citation: Polym. Chem., 2017, Advance Article
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    Combinatorial synthesis of soluble conjugated polymeric nanoparticles and tunable multicolour fluorescence sensing

    P. Zhao, Y. Dai, Y. Wu, L. Wang, B. Huang, Y. Ding and A. Hu, Polym. Chem., 2017, Advance Article , DOI: 10.1039/C7PY01233K

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