화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 고분자합성
제목 Insight to Hydrogen Bonding in Supramolecular Chiarlity of Self-assembled Helical Nanostructures Induced by Light.
초록 Triphenylamine (TPA) derivatives are easily oxidized in chlorinated solvents under light irradiation due to the generation of chlorine radicals. We reported the formation of TPA based chiral supramolecules with circularly polarized light (CPL) and the supramolecular chirality of TPA derivatives could be fixed by photo-polymerization of the diacetylene group of TPA. However, the supramolecular chirality did not have enough stability in solution and deteriorated gradually despite of the photo-polymerization of the self-assembled chiral supramolecules. In this study, triphenylamine derivatives having multiple hydrogen bonding sites (TPA-2a-SDA) were synthesized and their self-assembly behavior with CPL was investigated in chlorinated solvents. The supramolecules having increased number of hydrogen bondings showed the enhanced chiral stability.
저자 김동휘, 정성욱, 김상율
소속 한국과학기술원
키워드 self-assembly; circularly polarized light; triphernylamine; chirality
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