| 초록 |
One of the exciting developments in chemistry during the last two decades is construction of nanostructured materials from small building blocks by self-assembly. However, most of the studies utilize weak noncovalent interactions between building blocks, which allow a reversible process ultimately leading to the formation of thermodynamically most stable species. Recently, we reported the direct synthesis of nanometer–sized polymer hollow spheres without using templates. In this work, flat, rigid–core tectons with multiple functional groups at the periphery were cross–linked with linear linkers through irreversible covalent bond formation. Extending this work, we also demonstrated the synthesis and isolation of micrometer–scale 2D polymer sheets of single–molecular thickness and other nanostructured materials such as hollow nanotubular toroidal polymer microrings. These are rare examples of covalent self-assembly under kinetic control. |
