Cooperative Tridentate Hydrogen-Bonding Interactions Enable Strong Underwater Adhesion.

ABSTRACT: Multidentate hydrogen-bonding interactions are a promising strategy to improve underwater adhesion. Molecular and macroscale experiments have revealed an increase in underwater adhesion by incorporating multidentate H-bonding groups, but quantitatively relating the macroscale adhesive strength to cooperative hydrogen-bonding interactions remains challenging. Here, we investigate whether tridentate alcohol moieties incorporated in a model epoxy act cooperatively to enhance adhesion. We first demonstrate that incorporation of tridentate alcohol moieties leads to comparable adhesive strength with mica and aluminum in air and in water. We then show that the presence of tridentate groups leads to energy release rates that increase with an increase in crack velocity in air and in water, while ma

SUBMITTER: Lamberty ZD 

PROVIDER: S-EPMC10375471 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature