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Issue 23, 2017
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Photoresponsive AA/BB supramolecular polymers comprising stiff-stilbene based guests and bispillar[5]arenes

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Abstract

We report the facile preparation of photoresponsive AA/BB supramolecular polymers comprising an E-stiff-stilbene bridged guest (E-G) and a disulfide-bridged bispillar[5]arene (H). The different assembly behaviours of Z-G and E-G with H were thoroughly investigated by 1H NMR, ROESY, DOSY and viscosity experiments, respectively. The 1 : 1 mixture of Z-G and H assembled into oligomers at 5–150 mM. In contrast, the 1 : 1 mixture of E-G and H assembled into AA/BB-type supramolecular polymers following a ring-chain polymerization mechanism. The formation and disassembly of the AA/BB supramolecular polymers were regulated by photoisomerization of stiff stilbene.

Graphical abstract: Photoresponsive AA/BB supramolecular polymers comprising stiff-stilbene based guests and bispillar[5]arenes

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Publication details

The article was received on 27 Feb 2017, accepted on 16 May 2017 and first published on 17 May 2017


Article type: Paper
DOI: 10.1039/C7PY00326A
Citation: Polym. Chem., 2017,8, 3596-3602
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    Photoresponsive AA/BB supramolecular polymers comprising stiff-stilbene based guests and bispillar[5]arenes

    Y. Wang, C. Sun, L. Niu, L. Wu, C. Tung, Y. Chen and Q. Yang, Polym. Chem., 2017, 8, 3596
    DOI: 10.1039/C7PY00326A

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