Urethanes as reversible covalent moieties in self-healing polymers
Kuhl N, Abend M, Geitner R, Vitz J, Zechel S, Schmitt M, Popp J, Schubert US, Hager MD (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 104
Pages Range: 45-50
DOI: 10.1016/j.eurpolymj.2018.04.027
Abstract
For the first time, reversible covalent urethane units are used for the design of new self-healing polymers. For this purpose, an electron-poor diol was synthesized and utilized as crosslinker to create a dynamic polymer network. Therefore, the diol, butyl methacrylate as well as 2-isocyanato ethyl methacrylate are intermixed and photo-polymerized in a bone-shaped PTFE mold. The resulting test specimens are characterized by DSC, TGA and DMTA and the self-healing behavior is studied using tensile tests. Thereby, healing efficiencies of up to 85% could be reached while the material exhibits good mechanical properties with high E-moduli. Additionally, the self-healing mechanism, which is based on exchange reactions of the reversible urethane moieties, is investigated by Raman as well as temperature dependent IR measurements.
Involved external institutions
Germany (DE)How to cite
APA:
Kuhl, N., Abend, M., Geitner, R., Vitz, J., Zechel, S., Schmitt, M.,... Hager, M.D. (2018). Urethanes as reversible covalent moieties in self-healing polymers. European Polymer Journal, 104, 45-50. https://doi.org/10.1016/j.eurpolymj.2018.04.027
MLA:
Kuhl, Natascha, et al. "Urethanes as reversible covalent moieties in self-healing polymers." European Polymer Journal 104 (2018): 45-50.
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