Force-induced cleavage of a labile bond for enhanced mechanochemical crosslinking

We introduce a simple, yet powerful approach towards force-induced healing polymers. While most synthetic polymers fail in response to stress and have no recovery mechanism, we demonstrate that polymers containing a thiocarbonylthio group exhibit amplified mechanochemical activity. In the presence o...

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Bibliographic Details
Published in:Polymer chemistry 2017-11, Vol.8 (42), p.6485-6489
Main Authors: Gordon, Melissa B, Wang, Shu, Knappe, Grant A, Wagner, Norman J, Epps, Thomas H, Kloxin, Christopher J
Format: Article
Language:English
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Summary:We introduce a simple, yet powerful approach towards force-induced healing polymers. While most synthetic polymers fail in response to stress and have no recovery mechanism, we demonstrate that polymers containing a thiocarbonylthio group exhibit amplified mechanochemical activity. In the presence of a crosslinker, the radicals generated from homolytic cleavage are exploited to trigger a 'healing' response within minutes. We demonstrate a promising approach towards designing force-responsive polymers. A thiocarbonylthio group exhibits amplified mechanochemical activity, triggering healing via crosslinking.
ISSN:1759-9954
1759-9962
DOI:10.1039/c7py01431g