Nowadays, the introduction of new monomers, and the construction of new structures to prepare adhesives that can maintain high strength over time on a wide range of substrates as well as in harsh and humid environments are the mainstream research ideas in the development of modern multifunctional adhesives. However, the ensuing problems of complex synthesis, harsh conditions of use (For example, UV light, catalyst, heating, etc.), and excessive industrial costs limit the application of these ideas. Here, the authors report a new super-strong self-initiating underwater adhesive -formylphenyl acrylate (FPA), which constructs a strong adhesion network via generating radicals from aldehyde groups facilitated by oxygen to initiate olefin polymerization, achieving an average adhesion strength of up to 19.1 MPa on steel substrates. FPA obtained by one-step synthesis has the advantage of being simple to synthesize and use, can self-curing and adhesion to a wide range of substrates, and maintain excellent adhesion strength in a variety of harsh environments. Surprisingly, FPA can perform underwater adhesion procedures in water, simulated seawater, and a wide pH range of water environments with strong underwater adhesion. These environments include almost all water environments and demonstrate the application potential of FPA as a modern multifunctional adhesive for all types of water environments.

中文翻译：

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高强度、自引发、pH范围宽的水下粘合剂，适合不同恶劣环境


如今，引入新单体、构建新结构来制备能够在多种基材以及恶劣潮湿环境下长期保持高强度的粘合剂是现代多功能粘合剂开发的主流研究思路。然而，随之而来的复杂合成、苛刻的使用条件（例如紫外光、催化剂、加热等）以及过高的工业成本限制了这些想法的应用。在此，作者报道了一种新型超强自引发水下粘合剂——丙烯酸甲酰基苯酯（FPA），它通过氧促进醛基产生自由基引发烯烃聚合来构建强粘合网络，实现平均粘合强度高达钢基材上的压力为 19.1 MPa。一步合成得到的FPA具有合成和使用简单的优点，能够自固化并粘附于多种基材，并在各种恶劣环境下保持优异的粘附强度。令人惊讶的是，FPA可以在水中、模拟海水和宽pH范围的水环境中进行水下粘附程序，具有很强的水下粘附力。这些环境包括几乎所有的水环境，并展示了FPA作为现代多功能粘合剂在所有类型的水环境中的应用潜力。