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Issue 1, 2019
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A novel polysiloxane elastomer based on reversible aluminum-carboxylate coordination

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Abstract

Non-covalently crosslinked elastomers based on metal–ligand complexations have been comprehensively reported as functional materials, yet the coordination systems have been mostly built using nitrogen-containing aromatic ligands and transition metal ions. Inspired by the diverse nature of metal–ligand complexations, herein we report a novel network that, to the best of our knowledge, for the first time uses main-group aluminum ions to crosslink carboxyl-modified polysiloxanes [Al(III)-CPDMS]. The Al(III)-carboxylate complexation has been revealed to be effective in constructing an elastic network with self-healing and reprocessing properties. The mechanical and self-healing properties of Al(III)-CPDMS can be regulated by changing its chain length, carboxyl grafting density and Al(III) feed. We intend to present a design concept that facilely uses versatile coordination bonds to create novel functional elastic systems.

Graphical abstract: A novel polysiloxane elastomer based on reversible aluminum-carboxylate coordination

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Publication details

The article was received on 19 Sep 2018, accepted on 17 Nov 2018 and first published on 19 Nov 2018


Article type: Paper
DOI: 10.1039/C8NJ04761H
Citation: New J. Chem., 2019,43, 261-268
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    A novel polysiloxane elastomer based on reversible aluminum-carboxylate coordination

    Y. Lei, W. Huang, Q. Huang and A. Zhang, New J. Chem., 2019, 43, 261
    DOI: 10.1039/C8NJ04761H

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