The hydrogels composed of decamethylcucurbit[5]uril (Me₁₀Q[5]) and para-phenylenediamine (p-PDA) are first reported herein. They are the first Q[5]-based supramolecular hydrogels, the formation of which is driven by portal exclusion between Me₁₀Q[5] and p-PDA. The composition, structure, and properties of the Me₁₀Q[5]/p-PDA-based hydrogels are investigated by various techniques. Since the 1D supramolecular chain forms via portal exclusion between Me₁₀Q[5] and p-PDA is the key to the formation of the hydrogels, any competitive species, such as metal ions, organic molecules, and amino acids, which can affect the portal exclusion, can change the behavior of the Me₁₀Q[5]/p-PDA-based hydrogels. Hence, the hydrogels can be used for various applications. Importantly, the results may provide a new research direction for the preparation of Q[n]-based hydrogels via portal exclusion of Q[n]s with guests.

中文翻译：

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十甲基葫芦[5]脲-对苯二胺排阻复合物构建的多刺激响应超分子水凝胶

本文首次报道了由十甲基葫芦[5]脲（Me ₁₀ Q[5]）和对苯二胺（p -PDA）组成的水凝胶。它们是第一个基于 Q[5] 的超分子水凝胶，其形成是由 Me ₁₀ Q[5] 和p -PDA之间的门户排斥驱动的。Me ₁₀ Q[5]/ p -PDA 基水凝胶的组成、结构和性能通过各种技术进行了研究。由于一维超分子链通过 Me ₁₀ Q[5] 和p之间的门户排斥形成-PDA 是形成水凝胶的关键，任何可以影响门户排斥的竞争性物质，例如金属离子、有机分子和氨基酸，都可以改变 Me ₁₀ Q[5]/ p 的行为-基于PDA的水凝胶。因此，水凝胶可用于各种应用。重要的是，该结果可能为通过入口排除 Q[n] 与客人来制备基于 Q[n] 的水凝胶提供新的研究方向。