Mussel inspired self-healing materials: Coordination chemistry of polyphenols

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Coordination bonds are most often reversible. Using them to crosslink polymers into for example hydrogels can therefore be expected to result in reversible crosslinks, which in turn provides self-healing properties. Polyphenols such as the catechol group of the special amino acid DOPA (L-3,4-dihydroxyphenylalanine), which is used in mussel byssal threads to form a self-healing coating and for adhesion, are excellent coordinators of hard metal ions like iron(III). We will discuss the use of polyphenols and metal crosslinking to form self-healing hydrogels. We also treat less specific effects of metal ions on hydrogel gel mechanical properties by describing Hofmeister effects of cations on hydrogel rheological properties.

OriginalsprogEngelsk
TitelNanoscale Coordination Chemistry
Antal sider30
ForlagElsevier
Udgivelsesår2020
Sider269-298
Kapitel8
ISBN (trykt)978-0-12-820252-4
DOI
StatusUdgivet - 2020
SerietitelAdvances in Inorganic Chemistry
Vol/bind76
ISSN0898-8838

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