| 학회 | 한국고분자학회 |
| 학술대회 | 2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 | 47권 1호 |
| 발표분야 | 대학원생 구두발표(토론III): 자극응답성/자가변환성 콜로이드 및 분자소재 연구 |
| 제목 | Tailoring of Selective Chemical Reaction via Liquid Crystals Integrated with Organic Ionics |
| 초록 | Liquid crystals (LCs) have been used for reporting a variety of chemical reactions via the amplification ability resulting from the combination of anisotropic nature and long-range molecular ordering.1 However, the relatively low selectivity to specific chemicals has hindered their potential. Here, we propose simple and versatile design rules to control not only selectivity but sensitivity by decorating the interface with organic ionics (OIs). We demonstrated the OI-LC film to immediately sense and optically report the exposure of a specific gas molecule (acetic acid) at very low concentration (＜ 1 ppm) by electrostatic interaction of the head group of OI to specific functional group. Furthermore, we showed their characteristics are controllable by modulating the length of carbon chain and type of counter ion in OIs. The results represent a good agreement between the experimental and theoretical exploration. This work was supported by the NRF (2021R1A4A1030944 & 2021R1A2C2095010) |
| 저자 | 최진강 1 , 최예나 2 , 김원식 1 , 이민재 3 , 손창윤 1 , 김영기 1 |
| 소속 | 1 포항공과대, 2 POSTECH, 3 군산대 |
| 키워드 | 액정 ; 센서 ; 아세트산 ; 유기이온 |
