| 초록 |
Here we report the spontaneous formation of switchable nanoporous sheets in aqueous solution, which is based on the 2-dimensional (2-D) self-assembly of rationally-designed aromatic macrobicycles with hydrophilic dendrons on the center of the basal plane. The molecules self-assemble into faced dimeric micelles with a diameter of 3.5 nm which further associate in a lateral way to form porous sheets with nanometer-sized lateral pores. The resulting sheets efficiently intercalate planar aromatic molecules such as coronene. Notably, intercalation of the guest enforces the porous sheets to reversibly transform into closed sheets. Furthermore, this switch is accompanied by flexibility change of the self-assembled 2D structure from flexible to rigid states. |
