| 초록 |
Polyhedral oligomeric silsesquioxanes (POSS) can be used for the formation of vertical alignment (VA) of liquid crystal (LC). However, the pristine POSS are highly aggregate themselves in the LC media. To overcome this problem, we newly synthesized the cyanobiphenyl monosubstituted POSS giant molecule (POSS-CBMS), which showed an excellent dispersion in nematic (N) LC media and formed the perfect VA of LC without using conventional polymer-based VA layers. On the basis of the systematic experiments and careful analysis, we realized that cyanobiphenyl part chemically attached to the pristine POSS with an alkyl chain can improve the initial solubility and interaction with LC media. This work was supported by a grant from the Korea Institute of Science and Technology (KIST) Institutional Program (2Z04320), the Converging Research Center Program (2013K001428), SW Fusion Components R&D Program (MOTIE-10047806) and BK21Plus Program. |
