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Issue 12, 2017
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Repairable photoactive polymer systems via metal–terpyridine-based self-assembly

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The development of sustainable polymeric photo-catalytic systems for the conversion of solar energy is an important issue. In this perspective, efficient photo-catalytic systems have been developed by many research groups; however, their long-term stability or sustainability is still challenging and need to be resolved. In order to realize sustainable polymeric photoactive systems, we developed terpyridine (tpy)-based polymers and their ruthenium complexes, which were reversibly assembled and disassembled through metal ion–ligand interactions. In the presence of metal ions, Ru-based photoactive polymers were assembled on tpy-coated ITO substrates, generating visible-light induced photocurrents. Subsequently, when disassembled by the introduction of tetra-n-butylammonium fluoride, the assembled polymeric complex decomposed, decreasing the photocurrent. However, the photocurrent efficiency of this system was recovered through re-assembly and repeated several times without a significant decrease in its efficiency. In addition, a sustainable photo-catalyst system was achieved by photo-oxidative coupling with benzylamine. The initial active photo-catalytic system became inactive after disassembly; however, its activity was restored through assembly again, and this process was repeated successfully several times. The self-assembly via reversible metal ion–ligand interaction would enable photo-catalytic systems to be self-repairable and sustainable.

Graphical abstract: Repairable photoactive polymer systems via metal–terpyridine-based self-assembly

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The article was received on 17 Jan 2017, accepted on 02 Mar 2017 and first published on 03 Mar 2017

Article type: Paper
DOI: 10.1039/C7PY00095B
Citation: Polym. Chem., 2017,8, 1923-1931
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    Repairable photoactive polymer systems via metal–terpyridine-based self-assembly

    D. Jeong, J. Lee, Y. H. Ro and C. Song, Polym. Chem., 2017, 8, 1923
    DOI: 10.1039/C7PY00095B

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