Light-induced Wringing Asymmetric Macrogelator by Photoisomerizable Azobenzene
발표자
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초록
내용
Photo-induced wringing gel (1A3B) was newly designed and synthesized by linking the photoisomerizable azobenzene molecule moiety and liquid crystal-like dendrons. Before UV irradiation, the 1A3B was formed the 3D network in solution. But this gel was self-assembled into the layer structure after UV irradiation because of intermolecular hydrogen bonds between C=O and N−H. When 3D network organogels change the structure to layered structure, the solvent was discharged from the gel. Gel-sol transitions was only occurred by heat. We demonstrate that the 3D network in solution is the kinetically metastable and the layered structure after UV irradiation is stable condition. This work was supported by the MOTIE/KDRC 10051334, Mid-Career Researcher Program (2016R1A2B2011041), BK21 Plus program.