화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU))
권호 22권 2호
발표분야 디스플레이_포스터
제목 Multi-responsive Sol-Gel Transition of Liquid Crystal Physical Macrogel based Azobenzene Moiety
초록 Our research team successfully synthesized liquid crystal physical gels by making a hierarchical superstructure of a macrogelator in a host nematic liquid crystal medium. Due to the anisotropic properties of liquid crystal gels, light scattering was appeared when voltage is not applied. But under the electric field, the liquid crystal gel can show transmittance state. A transmittance state was reversibly switched by applying 22 V. This threshold voltage is five times lower than conventional polymer-dispersed liquid crystal system. According to azobenzene moiety, the transmittance state was appeared under the UV light. Because of the dendritic azobenzene groups, the stability and compatibility between B3AZs and NLCs were improved, but the orientation of B3AZ liquid crystal physical gel was not affected by the alignment layers in the LC test cell. This work was supported by the MOTIE/KDRC 10051334, Mid-Career Researcher Program (2016R1A2B2011041), BK21 Plus program, the BRL 2015042417.
저자 방극천, 최유진, 정광운
소속 전북대
키워드 Azobenzene; Gelation; Liquid crystal
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