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Issue 29, 2018
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Reversible fabrication and self-assembly of a gemini supra-amphiphile driven by dynamic covalent bonds

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Abstract

A smart gemini supra-amphiphile behaving with pH/CO2 dual-sensitive hierarchical self-assembly was fabricated under the effect of dynamic covalent bonds. In the presence of an amino-functionalized cation, water-insoluble terephthalaldehyde, and an amphiphilic anion, the benzoic imine bond can initiate the transformation from a single-tailed supra-amphiphile to a gemini supra-amphiphile with increasing pH, followed by the subsequent evolution from micelles to vesicles. Reversible self-assembly and disassembly of the gemini supra-amphiphile can be realized via CO2/N2 treatment, thus inducing the fission and reversion of vesicles. Interestingly, the flexible nature of supra-amphiphiles allows for the hierarchical assembly of vesicles, leading to the formation of aqueous two-phase systems. Multiple responsive supra-amphiphiles have useful applications in the fabrication of smart supra-molecular materials, including self-healing materials, nanocarriers and chemosensors.

Graphical abstract: Reversible fabrication and self-assembly of a gemini supra-amphiphile driven by dynamic covalent bonds

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Publication details

The article was received on 17 Jun 2018, accepted on 06 Jul 2018 and first published on 09 Jul 2018


Article type: Paper
DOI: 10.1039/C8SM01239C
Citation: Soft Matter, 2018,14, 5995-6000
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    Reversible fabrication and self-assembly of a gemini supra-amphiphile driven by dynamic covalent bonds

    L. Shi, F. Liu, T. Liu, J. Chen, S. Xu and H. Zeng, Soft Matter, 2018, 14, 5995
    DOI: 10.1039/C8SM01239C

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