Room-temperature self-healing polymers based on dynamic-covalent boronic esters

Cash, Jessica J., Kubo, Tomohiro, Bapat, Abhijeet P. and Sumerlin, Brent S. (2015) Room-temperature self-healing polymers based on dynamic-covalent boronic esters. Macromolecules, 48 7: 2098-2106. doi:10.1021/acs.macromol.5b00210


Author Cash, Jessica J.
Kubo, Tomohiro
Bapat, Abhijeet P.
Sumerlin, Brent S.
Title Room-temperature self-healing polymers based on dynamic-covalent boronic esters
Journal name Macromolecules   Check publisher's open access policy
ISSN 0024-9297
1520-5835
Publication date 2015-04-14
Year available 2015
Sub-type Article (original research)
DOI 10.1021/acs.macromol.5b00210
Open Access Status Not Open Access
Volume 48
Issue 7
Start page 2098
End page 2106
Total pages 9
Place of publication Washington, DC United States
Publisher American Chemical Society
Language eng
Formatted abstract
Cross-linked polymers constructed with dynamic-covalent boronic esters were synthesized via photoinitiated radical thiol-ene click chemistry. Because the reversibility of the boronic ester cross-links was readily accessible, the resulting materials were capable of undergoing bond exchange to covalently mend after failure. The reversible bonds of the boronic esters were shown to shift their exchange equilibrium at room temperature when exposed to water. Nevertheless, the materials were observed to be stable and hydrophobic and absorbed only minor amounts of water over extended periods of time when submerged in water or exposed to humid environments. The facile reversibility of the networks allowed intrinsic self-healing under ambient conditions. Highly efficient self-healing of these bulk materials was confirmed by mechanical testing, even after subjecting a single site to multiple cut-repair cycles. Several variables were considered for their effect on materials properties and healing, including cross-link density, humidity, and healing time.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Mon, 28 Sep 2015, 00:09:19 EST by Abhijeet Bapat on behalf of Aust Institute for Bioengineering & Nanotechnology