4 years ago

Remendable polymers via reversible Diels–Alder cycloaddition of anthracene-containing copolymers with fullerenes

Remendable polymers via reversible Diels–Alder cycloaddition of anthracene-containing copolymers with fullerenes
Michael Schmitt, Jürgen Vitz, Julia Kötteritzsch, Johannes Ahner, Jürgen Popp, Benjamin Dietzek, Stephanie Hoeppener, Marcus Abend, Ulrich S. Schubert, Robert Geitner, Martin D. Hager, Stefan Zechel
Poly(lauryl methacrylate)s with anthracene moieties in the side chain were converted with C60-fullerene and phenyl-C61-butyric acid methyl ester (PCBM), resulting in new remendable (self-healing) polymeric materials. The utilization of differently substituted anthracene monomers enabled the tuning of the reactivity and the resulting mechanical properties. Copolymers with different contents of the anthracene moieties were synthesized and characterized using size exclusion chromatography, 1H nuclear magnetic resonance (NMR) spectroscopy as well as differential scanning calorimetry (DSC). 1H NMR spectroscopic studies were utilized in order to investigate the reversibility of the Diels–Alder reaction between copolymers with C60-fullerene and PCBM, respectively, in solution. In order to investigate the conversion of the polymers with C60-fullerene and PCBM in bulk, additionally, DSC, nanoindentation, rheology, atomic force microscopy (AFM), 3D microscopy, simultaneous thermal analysis (STA) and FT-Raman investigations were performed. The fullerene-containing copolymers could be healed in a temperature range of 40–80 °C. Consequently, a new generation of low temperature remendable polymers could be established. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 135, 45916.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/app.45916

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