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Reversible photoswitching self-assembly of azobenzene-functionalized hyperbranched polyglycerol induced by host-guest chemistry

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Abstract

Reversible assembly and disassembly of rod-like large complex micelles have been achieved by applying photoswitching of supramolecular inclusion and exclusion of azobenzene-functionalized hyperbranched polyglycerol and α-cyclodextrin as driving force, promising a versatile system for self-assembly switched by light. Hydrogen-nuclear magnetic resonance (1H NMR) and Fourier transform infrared (FT-IR) spectroscopy were applied to characterize the azobenzene-functionalized hyperbranched polyglycerol. Atomic force microscopy (AFM), transmission electron microscopy (TEM) and dynamic laser light scattering (DLS) were employed to investigate and track the morphology of the rod-like large complex micelles before and after irradiation of UV light.

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Authors and Affiliations

  1. MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China

    Yi Han & Chao Gao

  2. Department of Chemistry, East China Normal University, Shanghai, 200062, China

    XiaoHua He

Authors
  1. Yi Han
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  2. Chao Gao
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  3. XiaoHua He
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Correspondence to Chao Gao or XiaoHua He.

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Han, Y., Gao, C. & He, X. Reversible photoswitching self-assembly of azobenzene-functionalized hyperbranched polyglycerol induced by host-guest chemistry. Sci. China Chem. 55, 604–611 (2012). https://doi.org/10.1007/s11426-011-4421-9

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  • DOI: https://doi.org/10.1007/s11426-011-4421-9

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