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Hierarchical Multi-Step Folding of Polymer Bilayers

Authors

  • Georgi Stoychev,

    1. Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, Germany
    2. Technische Universität Dresden, Physical Chemistry of Polymer Materials, 01062 Dresden, Germany
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  • Sébastien Turcaud,

    1. Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14424, Potsdam, Germany
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  • John W. C. Dunlop,

    1. Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14424, Potsdam, Germany
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  • Leonid Ionov

    Corresponding author
    1. Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, Germany
    • Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, Germany.

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Abstract

A highly complex multi-step folding of isotropic stimuli-responsive polymer bilayers resulting in a variety of 2D and 3D structures is reported. Experimental observations allow determination of empirical rules, which can be used to direct the folding of polymer films in a predictable manner. In particular, it is demonstrated that these rules can be used for the design of a 3D pyramid. The understanding and know-how attained in this study allow the very simple design of highly complex, self-folding 3D objects and open new horizons for 3D patterning, important for the design of microfluidic devices, biomaterials, and soft electronics.

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