| 초록 |
The state-of-art research on nanoscale materials is now being shifted from planar films to other geometry. We recently found some examples where frustration, induced by curvature, breaks the symmetry of a structure. When the extreme imposed curvature, coupled with commensurability conditions, places significant packing constraints on the chains, it induces a new morphology that cannot be observed in bulk. While the crystal structure of a polymer was also found to be controlled by the imposed curvature, we observed that the crystallization behavior in the cylindrical nanopore is drastically altered from homogeneous to heterogeneous nucleation upon tightening the degree of confinement. The understanding of new structures and many innovative properties that cannot be expected in bulk materials are of supreme importance for the designing a new type of materials. (with Dr. June Huh, Dr. Young Gyu Jeong, Euntaek Woo, and Kyung Wook Noh) |
