화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 기능성 고분자
제목 Photo-induced Wringing Gel Fabricated from Asymmetric Azobenzene-based Gelator
초록 For fabrication of wireless switches, an asymmetric azobenzene-based macrogelator (AZ-3BP) is newly designed and successfully synthesized. The phase transitions of AZ-3BP depend on the cooling rate and overlapped phase is separated as the cooling rate increases. The intercalations of alkyl chains crosslinked by intermolecular hydrogen bonding are investigated through wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS) experiments. The photo-responsibility of AZ-3BP is investigated by UV light irradiation to the AZ-3BP organogel. Gel-sol transition occurred by squeezing organic solvents due to trans-to-cis isomerization as UV light is exposed. The wringing behavior is resulted from the morphology change from the metastable 3D network to the stable layer structure. This work was supported by the BK21 Plus Program of Korea, Mid-Career Researcher Program (2021R1A2C2009423).
저자 오민택, 정광운
소속 전북대
키워드 photo-responsive; macrogelator; wringing gel; organogel
E-Mail