| 학회 | 한국공업화학회 |
| 학술대회 | 2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 | 19권 2호 |
| 발표분야 | 디스플레이_포스터 |
| 제목 | Synthesis and characterization BINAP based photo-switchable chiral dopant |
| 초록 | The development of reversible optical memory and light-driven chiral molecular switches is attracting tremendous interest since they hold a great promise in applications as well as fundamental science. A promising solution lies in the photoresponsive chiral nematic (cholesteric) phase whose unique helical structures and physical properties can be tuned upon light irradiation. Such a phase can be achieved by doping chiral molecules including photoresponsive group into a nematic liquid crystal host. We are synthesized binaphthyl-based azobenzenes chiral dopants. The new chiral molecules have bulky alkyl group, hydrophilic and hydrophobic substituents. It was prepared by azo coupling reaction, esterification and its chemical structure was characterized by 1H NMR spectroscopy, high-resolution mass spectrometry. Photoresponsive helical twisting power (HTP) change also studied with reflection spectroscopy of chiral dopant doped CLC cell under UV irradiation. In this presentation, detailed synthetic procedure and optical properties of BINAP based photoresponsive chiral dopants will be discussed. |
| 저자 | 장광석, 김진수, 김윤호, 가재원, 이은옥 |
| 소속 | 한국화학(연) |
| 키워드 | chiral dopant; helical twisting power |
