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Metal-coordination: using one of nature's tricks to control soft material mechanics

Author(s)
Holten-Andersen, Niels; Jaishankar, Aditya; Harrington, Matthew J.; Fullenkamp, Dominic E.; DiMarco, Genevieve; He, Lihong; McKinley, Gareth H.; Messersmith, Phillip B.; Lee, Ka Yee C.; ... Show more Show less
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Abstract
Growing evidence supports a critical role of dynamic metal-coordination crosslinking in soft biological material properties such as self-healing and underwater adhesion. Using bio-inspired metal-coordinating polymers, initial efforts to mimic these properties have shown promise. Here we demonstrate how bio-inspired aqueous polymer network mechanics can be easily controlled via metal-coordination crosslink dynamics; metal ion-based crosslink stability control allows aqueous polymer network relaxation times to be finely tuned over several orders of magnitude. In addition to further biological material insights, our demonstration of this compositional scaling mechanism should provide inspiration for new polymer material property-control designs.
Date issued
2013-11
URI
http://hdl.handle.net/1721.1/91940
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering; Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal
Journal of Materials Chemistry B
Publisher
Royal Society of Chemistry
Citation
Holten-Andersen, Niels, Aditya Jaishankar, Matthew J. Harrington, Dominic E. Fullenkamp, Genevieve DiMarco, Lihong He, Gareth H. McKinley, Phillip B. Messersmith, and Ka Yee C. Lee. “Metal-Coordination: Using One of Nature’s Tricks to Control Soft Material Mechanics.” Journal of Materials Chemistry B 2, no. 17 (2014): 2467.
Version: Author's final manuscript
ISSN
2050-750X
2050-7518

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