A Metal Salt Dependent Self-Healing Response in Supramolecular Block Copolymers

A Metal Salt Dependent Self-Healing Response in Supramolecular Block Copolymers

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....

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Veröffentlicht in:Macromolecules 2016-11, Vol.49 (22), p.8418-8429
Hauptverfasser: Enke, Marcel, Bose, Ranjita K, Bode, Stefan, Vitz, Jürgen, Schacher, Felix H, Garcia, Santiago J, van der Zwaag, Sybrand, Hager, Martin D, Schubert, Ulrich S
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container_end_page 8429
container_issue 22
container_start_page 8418
container_title Macromolecules
container_volume 49
creator Enke, Marcel
Bose, Ranjita K
Bode, Stefan
Vitz, Jürgen
Schacher, Felix H
Garcia, Santiago J
van der Zwaag, Sybrand
Hager, Martin D
Schubert, Ulrich S
description 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.
doi_str_mv 10.1021/acs.macromol.6b02108
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