화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 기능성 고분자
제목 Reactive Additives for Improvement in Molecular Orientation of Photo-alignment Layer for Retardation Film
초록 In order to solve the drawbacks of polyimide rubbing method, recent researches on a photo-alignment method have intensively been conducted. [2+2]cycloaddition materials with photoreactive cinnamate and chalcone groups have excellent photosensitivity and orientation stability and thus are expected to be good candidates for the practical use. In this study, three different photoreactive compounds containing chalcone or cinnamate group were synthesized and their physical properties were evaluated as additives for photo-alignment layer. Their structures were confirmed by FT-IR and NMR spectroscopy, and photosensitivities were evaluated by UV-VIS spectroscopy. the retardation film was prepared by adding the additive to a commercially available photo-alignment polymer and the orientation stabilities were measured. Consequently, the retardation film to which the additives were added showed enhanced photo-alignment properties, indicating the advantage of the use of additive.
저자 이진은, 곽기섭
소속 경북대
키워드 photo-alignment; retardation film; cinnamate; chalcone
E-Mail gkwak@knu.ac.kr