Visible-light responsive hydrogen-bonded supramolecular polymers based on ortho-tetrafluorinated azobenzene

文献情報

出版日 2017-11-13

DOI 10.1039/C7PY01612C

インパクトファクター 5.582

著者

Meng-Di Lin, Jie Wei, Li-Juan Liu, Meng-Yan Yun, Lin Wu, Si-Tai Zheng, Huan-Huan Yin, Li-Chun Kong

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要旨

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 ortho-tetrafluorinated azobenzene (TFAB) linker. Benefiting from the visible-light responsive feature of the TFAB unit, reversible photoisomerization between the two isomers of the monomer can be achieved. The E-isomer prefers to form a linear supramolecular polymer through the intermolecular quadruple hydrogen bonding interactions between UPys, whereas the Z-isomer facilely forms a 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 photo-isomerization of the TFAB chromophore.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Visible-light responsive hydrogen-bonded supramolecular polymers based on ortho-tetrafluorinated azobenzene

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