The construction of supramolecular polymers based on aromatic acylhydrazone macrocycle
摘要
<p indent="0mm">To construct novel supramolecular polymers with more complex structures, ordered hierarchies, and unique properties, a multilevel assembly using various non-covalent interactions is essential. This study presents a novel supramolecular polymer, <bold>SP-1</bold>, and its further crosslinked supramolecular polymer network, <bold>SP-2</bold>, formed <italic>via</italic> host-guest interactions. Through the combined use of metal coordination and host-guest interactions, we achieved the coordination assembly of hydrazone macrocycle <bold>MC</bold> with silver ions, followed by secondary assembly with bipyridinium salt <bold>BP</bold>. The planar structure of <bold>MC</bold> facilitates coordination with metal ions. Upon forming <bold>SP-1</bold>, its morphology transitions from vesicles to nanoparticles. Subsequent crosslinking of <bold>SP-1</bold> with <bold>BP</bold> transforms these nanoparticles into well-defined, small-sized nanorods, resulting in <bold>SP-2</bold>. The study highlights the significant potential of <bold>MC</bold> in supramolecular polymer construction and underscores the critical role of host-guest interactions in building complex supramolecular structures.