Self-Healing Polymer Networks Based on Reversible Michael Addition Reactions

Journal article (2016)

Authors

Natascha Kuhl Friedrich Schiller University Jena
Robert Geitner Friedrich Schiller University Jena
Martin D. Hager Friedrich Schiller University Jena
R.K. Bose Novel Aerospace Materials - Aerospace Engineering
Stefan Bode Friedrich Schiller University Jena
Benjamin Dietzek Leibniz Institute for Photonic Technology (IPHT) Jena
Michael Schmitt Friedrich Schiller University Jena
Jürgen Popp Leibniz Institute for Photonic Technology (IPHT) Jena
Santiago J. Garcia Novel Aerospace Materials - Aerospace Engineering
S. van der Zwaag Novel Aerospace Materials - Aerospace Engineering
Ulrich S. Schubert Friedrich Schiller University Jena
Research Group
Novel Aerospace Materials (Aerospace Engineering) (TU Delft)
More Info
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Published Date

01-11-2016

Language

English

Reuse Rights

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Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Novel Aerospace Materials

Abstract

A new polymeric material utilizing a highly efficient as well as reversible thiol-ene click reaction is presented. For this purpose, a trithiol is reacted with a bisbenzylcyanoacetamide derivative resulting in the formation of a dynamic polymer network. The self-healing ability of this novel material is tested by scratch healing experiments. Healing is found to take place from 60 °C onward. The underlying healing mechanism is studied in detail using temperature-dependent Raman spectroscopy confirming the reversible opening of the thiol-ene adducts. Additionally, the thermal and mechanical properties are investigated by differential scanning calorimetry, thermogravimetric analysis, and rheological measurements proving the network formation as well as its reversibility during the thermal treatment. (Figure presented.).