Host–Guest Interactions between a Nonmicellized Amphiphilic Invertible Polymer and Insoluble Cyclohexasilane in Acetonitrile

Host–guest interactions between cyclohexasilane (Si₆H₁₂) and amphiphilic invertible macromolecules based on PEG and sebacic acid in acetonitrile (neither a solvent for cyclohexasilane nor a support for the micellization of amphiphilic invertible macromolecules) have been investigated. Despite the extended conformation of the macromolecules and the absence of self-assembled polymeric domains, a macromolecular amphiphilicity itself contributes to localizing Si₆H₁₂ by AIP and thus enables Lewis acid–base interactions between Si₆H₁₂ and the AIP carbonyl groups. The obtained results demonstrate an interesting phenomenon in that insoluble Si₆H₁₂ can be localized by AIP macromolecules in a medium that does not support the formation of polymeric domains.