文献类型：期刊文献

英文题名：Robust and dynamic underwater adhesives enabled by catechol-functionalized poly(disulfides) network

作者：Shi, Chen-Yu[1,2];He, Dan-Dan[1,2];Zhang, Qi[1,2];Tong, Fei[1,2];Shi, Zhao-Tao[1,2];Tian, He[1,2];Qu, Da-Hui[1,2]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Joint Int Res Lab Precis Chem, Shanghai 200237, Peoples R China

年份：2023

卷号：10

期号：2

外文期刊名：NATIONAL SCIENCE REVIEW

收录：;EI(收录号：20232114121500);WOS:【SCI-EXPANDED(收录号:WOS:001001218600001)】；

语种：英文

外文关键词：adhesives; supramolecular materials; dynamic polymers; non-covalent crosslink; iron-catechol complexes

摘要：A robust underwater adhesive material is achieved by coupling natural thioctic acid with mussel-inspired iron-catechol chemistry, showing a high-strength, tunable and reusable adhesion to diverse surfaces. Developing molecular approaches to the creation of robust and water-resistant adhesive materials promotes a fundamental understanding of interfacial adhesion mechanisms as well as future applications of biomedical adhesive materials. Here, we present a simple and robust strategy that combines natural thioctic acid and mussel-inspired iron-catechol complexes to enable ultra-strong adhesive materials that can be used underwater and simultaneously exhibit unprecedentedly high adhesion strength on diverse surfaces. Our experimental results show that the robust crosslinking interaction of the iron-catechol complexes, as well as high-density hydrogen bonding, are responsible for the ultra-high interfacial adhesion strength. The embedding effect of the hydrophobic solvent-free network of poly(disulfides) further enhances the water-resistance. The dynamic covalent poly(disulfides) network also makes the resulting materials reconfigurable, thus enabling reusability via repeated heating and cooling. This molecule-engineering strategy offers a general and versatile solution to the design and construction of dynamic supramolecular adhesive materials.