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As a special kind of supramolecular compound with many favorable properties, pillar n arene-based supramolecular polymer networks (SPNs) show potential application in many fields. Although we have come a long way using pillar n arene to prepare SPNs and construct a series of smart materials, it remains a challenge to enhance the mechanical strength of pillar n arene-based SPNs. To address this issue, a new supramolecular regulation strategy was developed, which could precisely control the preparation of pillar n arene-based SPN materials with excellent mechanical properties by adjusting the polymer network structures. Specifically, we utilized the host–guest interaction between pillar5arene and the alkyl chain of butyl acrylate monomer to form a supramolecular polymer network and achieved the transformation of different states by regulating the cross-linking density of the polymer networks. Additionally, the polymer networks exhibited good stimuli responsiveness as well as excellent dynamic properties and reconfigurable characteristics through a temperature change and the addition of competitive hosts or guests. The research provided new possibilities for the development of polymer materials.
Li et al. (Sat,) studied this question.