Supramolecular Adhesion at Extremely Low Temperatures: A Combined Experimental and Theoretical Investigation
- PMID: 33301680
- DOI: 10.1021/jacs.0c10786
Supramolecular Adhesion at Extremely Low Temperatures: A Combined Experimental and Theoretical Investigation
Abstract
Adhesive materials that are resistant to low temperatures have wide applications in daily life, scientific research, and industry. Currently, the overwhelming majority of low-temperature-resistant adhesives are traditional polymer systems. In this study, a new strategy was developed to obtain strong and long-lasting adhesion effects from low-molecular-weight adhesives at low temperatures. The introduction of water molecules and the formation of hydrogen bonds not only triggered supramolecular polymerization but also endowed the water-involved copolymer with low-temperature resistance. The water content of the polymeric supramolecular system played a crucial role in exhibiting adhesion behavior at low temperatures. Good adhesion performance was obtained in extremely low-temperature environments, including liquid nitrogen.
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