Dual crosslinked metallopolymers using orthogonal metal complexes as rewritable shape-memory polymers

Meurer J, Batz T, Hniopek J, Zechel S, Schmitt M, Popp J, Hager MD, Schubert US (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Journal of Materials Chemistry A Royal Society of Chemistry

Book Volume: 9

Pages Range: 15051-15058

Journal Issue: 26

DOI: 10.1039/d1ta03064g

Abstract

This work presents the synthesis and characterization of easily tuneable shape-memory metallopolymers. Furthermore, the structural design enables excellent rewriting properties. For this purpose, two different polymers were synthesized using either 2-ethyl hexyl- or butyl methacrylate monomers featuring both histidine and terpyridine ligands in their side chains. The addition of metal salt resulted in the selective formation of stable complexes with the terpyridine ligands (NiCl2or FeSO4) and addition of a second metal ion led to labile ones with the histidine ligands (Zn(TFMS)2or NiCl2). As a consequence, a dual supramolecular crosslinked metallopolymer network was formed, which was confirmed using Raman spectroscopy. Due to the use of different metal salts, it is possible to tune the stability of both complexes independently and, thus, the switching and rewriting temperature of the shape-memory polymer. Fixity and recovery rates up to 99% were obtained by this approach. Furthermore, thermo mechanical analyses revealed the rewriting possibility without reducing the shape-memory abilities.

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Meurer, J., Batz, T., Hniopek, J., Zechel, S., Schmitt, M., Popp, J.,... Schubert, U.S. (2021). Dual crosslinked metallopolymers using orthogonal metal complexes as rewritable shape-memory polymers. Journal of Materials Chemistry A, 9(26), 15051-15058. https://doi.org/10.1039/d1ta03064g

MLA:

Meurer, Josefine, et al. "Dual crosslinked metallopolymers using orthogonal metal complexes as rewritable shape-memory polymers." Journal of Materials Chemistry A 9.26 (2021): 15051-15058.

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