초록 |
In order to understand the relationship between hierarchical superstructures and its physical properties, pyrene-based asymmetric liquid crystal (LC) dendron (abbreviated as PyDn) was successfully synthesized by introducing a pyrene part (Py) at a biphenyl-based LC dendritic group (Dn). The phase transition behavior and its crystalline structure of PyDn has been systematically studied with a combined technique of thermal analysis, microscopy and scattering analysis. The kinetically controlled molecular packing structures of PyDn came from the competition of intermolecular secondary interactions with nanophase separation. This work was mainly supported by Mid-Career Researcher Program (2016R1A2B2011041), BK21 Plus program, Korea, and BRL (2015042417) of Korea. |