Journal article

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Triggered metal ion release and oxidation: ferrocene as a mechanophore in polymers

  • Giannantonio, Michela Di Department of Chemistry, University of Fribourg, Switzerland
  • Ayer, Mathieu A. Adolphe Merkle Institute, University of Fribourg, Switzerland
  • Verde-Sesto, Ester Adolphe Merkle Institute, University of Fribourg, Switzerland - Polymat, Joxe Mari Korta Center, University of the Basque Country, Donostia-San Sebastian, Spain
  • Lattuada, Marco Department of Chemistry, University of Fribourg, Switzerland
  • Weder, Christoph Adolphe Merkle Institute, University of Fribourg, Switzerland
  • Fromm, Katharina M. Department of Chemistry, University of Fribourg, Switzerland
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    27.08.2018
Published in:
  • Angewandte Chemie International Edition. - 2018, vol. 57, no. 35, p. 11445-11450
English The introduction of mechanophores into polymers makes it possible to transduce mechanical forces into chemical reactions that can be used to impart functions such as self‐healing, catalytic activity, and mechanochromic response. Here, an example of mechanically induced metal ion release from a polymer is reported. Ferrocene (Fc) was incorporated as an iron ion releasing mechanophore into poly(methyl acrylate)s (PMAs) and polyurethanes (PUs). Sonication triggered the preferential cleavage of the polymers at the Fc units over other bonds, as shown by a kinetic study of the molar mass distribution of the cleaved Fc‐containing and Fc‐free reference polymers. The released and oxidized iron ions can be detected with KSCN to generate the red‐ colored [Fe(SCN)n(H2O)6−n)](3−n)+ complex or reacted with K4[Fe(CN)6] to afford Prussian blue.
Faculty
Faculté des sciences et de médecine
Department
Département de Chimie
Language
  • English
Classification
Chemistry
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/307365
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