A metal salt dependent self-healing response in supramolecular block copolymers

Marcel Enke, Ranjita K. Bose, Stefan Bode, Jürgen Vitz, Felix H. Schacher, S.J. Garcia Espallargas, Sybrand Van Der Zwaag, Martin D. Hager, Ulrich S. Schubert

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)

Abstract

Different block copolymers containing terpyridine were synthesized applying the reversible addition-fragmentation chain transfer (RAFT) polymerization. The block copolymers contain polystyrene as hard block, and the soft block consists of n-butyl acrylate (BA) as well as terpyridine units as ligand. These block copolymers were further cross-linked with several metal salts in order to tune the self-healing behavior. Metallopolymers cross-linked with manganese(II) chloride featured the best self-healing behavior. Furthermore, a two-step mechanism behind the self-healing process of these metallopolymers could be attributed to each block of the copolymer and was studied extensively. In addition, rheological parameters were determined and correlated with the other results.

Original languageEnglish
Pages (from-to)8418-8429
Number of pages12
JournalMacromolecules
Volume49
Issue number22
DOIs
Publication statusPublished - 22 Nov 2016

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    Enke, M., Bose, R. K., Bode, S., Vitz, J., Schacher, F. H., Garcia Espallargas, S. J., Van Der Zwaag, S., Hager, M. D., & Schubert, U. S. (2016). A metal salt dependent self-healing response in supramolecular block copolymers. Macromolecules, 49(22), 8418-8429. https://doi.org/10.1021/acs.macromol.6b02108