AI Article Synopsis
- Underwater adhesives are important for marine applications but face issues like high water absorption and slow adhesion.
- Researchers developed a new adhesive using a specific polymer and hydrophobic ionic liquid that shows significant improvement, with adhesion energy increasing more than five times after 24 hours without needing external pressure.
- Their studies indicate that this adhesive’s bonding ability is driven by changes in functional groups due to water, potentially paving the way for future advanced adhesives.
Article Abstract
Underwater adhesives receive extensive attention due to their wide applications in marine explorations and various related industries. However, current adhesives still suffer from excessive water absorption and lack of spontaneity. Herein, we report an autonomous underwater adhesive based on poly(2-hydroxyethyl methacrylate-co-benzyl methacrylate) amphiphilic polymeric matrix swollen by hydrophobic imidazolium ionic liquid. The as-prepared adhesive is tough and flexible, showing little to none instantaneous underwater adhesion onto the PET substrate, whereas its adhesion energy on the substrate can grow more than 5 times to 458 J·m after 24 hours. More importantly, this process is entirely spontaneous, without any external pressing force. Our comprehensive studies based on experimental characterizations and molecular dynamic simulations confirm that such autonomous adhesion process is driven by water-induced rearrangement of the functional groups. It is believed that such material can provide insights into the development of next-generation smart adhesives.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10582181 | PMC |
| http://dx.doi.org/10.1038/s41467-023-42209-2 | DOI Listing |
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