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Visible-Light Responsive Hydrogen-Bonded Supramolecular Polymers Based on ortho-Tetrafluorinated Azobenzene

Abstract

Novel visible-light responsive hydrogen-bonded supramolecular polymers have been successfully constructed by using a linear molecule, which consists of two ureido-pyrimidinone (UPy) moieties connected by a photochromic otho-tetrafluorinated azobenzene (TFAB) linker. Benefiting from the visible-light responsive feature of the TFAB unit, revesible photoisomerization between the two isomers of the monomer can be achieved. The E-isomer prefers to form linear supramolecular polymer through the intermolecular quadruple hydrogen bonding interactions between UPys, whereas the Z-isomer facilely forms cyclic dimer. Therefore, the polymerization mechanisms and properties of such supramolecular polymers, e.g. reversible visible light induced gel-sol transformation behaviour, can be regulated by the reversible visible-light triggered E/Z photoisomerization of the TFAB chromophore.

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Publication details

The article was received on 20 Sep 2017, accepted on 10 Nov 2017 and first published on 13 Nov 2017


Article type: Paper
DOI: 10.1039/C7PY01612C
Citation: Polym. Chem., 2017, Accepted Manuscript
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    Visible-Light Responsive Hydrogen-Bonded Supramolecular Polymers Based on ortho-Tetrafluorinated Azobenzene

    K. Zhang, T. Zhan, M. Lin, J. Wei, L. Liu, M. Yun, L. Wu, S. Zheng, H. Yin and L. Kong, Polym. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7PY01612C

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