Acylhydrazones as Reversible Covalent Crosslinkers for Self‐Healing Polymers |
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| Authors: | Natascha Kuhl Stefan Bode Ranjita K. Bose Jürgen Vitz Andreas Seifert Stephanie Hoeppener Santiago J. Garcia Stefan Spange Sybrand van der Zwaag Martin D. Hager Ulrich S. Schubert |
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| Affiliation: | 1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany;2. Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany;3. Novel Aerospace Materials section, Delft University of Technology, HS Delft, The Netherlands;4. Institute of Chemistry, TU Chemnitz, Chemnitz, Germany;5. Dutch Polymer Institute (DPI), AX, Eindhoven, The Netherlands |
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| Abstract: | The utilization of dynamic covalent and noncovalent bonds in polymeric materials offers the possibility to regenerate mechanical damage, inflicted on the material, and is therefore of great interest in the field of self‐healing materials. For the design of a new class of self‐healing materials, methacrylate containing copolymers with acylhydrazones as reversible covalent crosslinkers are utilized. The self‐healing polymer networks are obtained by a bulk polymerization of an acylhydrazone crosslinker and commercially available methacrylates as comonomers to fine‐tune the Tg of the systems. The influence of the amount of acylhydrazone crosslinker and the self‐healing behavior of the polymers is studied in detail. Furthermore, the basic healing mechanism and the corresponding mechanical properties are analyzed. |
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| Keywords: | acylhydrazones dynamers polymer coatings self‐healing materials self‐healing polymers |
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