한국정보디스플레이학회:학술대회논문집
- 2007.08a
- /
- Pages.493-495
- /
- 2007
Thermal reaction of cinnamate oligomers and their effect on the orientational stability of liquid crystals
- Hah, Hyun-Dae (Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology) ;
- Sung, Shi-Joon (Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology) ;
-
Park, Jung-Ki
(Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology)
- Published : 2007.08.27
Abstract
Cinnamate groups are well-known for a dimerization reaction upon exposure to ultraviolet irradiation and a thermal reaction after being heated. In this study, to verify the thermal reaction of the cinnamate group in detail, we investigated the thermal crosslinking of cinnamate oligomers. The thermal reaction of cinnamate oligomers of low molecular weight is induced more readily by thermal energy compared with that of cinnamate polymers. The orientation of the liquid crystal depended on the length of the spacers in the cinnamate oligomers.
Keywords
- Liquid crystal alignment;
- Cinnamate oligomer;
- Thermal crosslinking;
- Thermal stability;
- Direction of LC orientation