| 세션명 | 대학원생 구두발표(토론III): 자기조립 기술 및 콜로이드 기반 소재 합성과 응용 |
|---|---|
| 발표장 | 제9-1회장 |
| 논문코드 | OD3-1 |
| 발표일 | 2024-04-3 |
| 발표시간 | 15:00-15:10 |
| 논문제목 | Tailoring Dynamic Chiral Supramolecular Assembly with Phototriggered Radical Anions of C3-Symmetric Triphenylene Triimides |
| 발표자 | 김남희 |
| 발표자 소속 | 연세대학교 |
| 저자 | 김남희, 김병수† |
| 소속 | 연세대학교 |
| 논문초록 | This study develops a new type of C3-symmetric triphenylene triimide (TTI) bearing different oligo(ethylene glycol) side chains via imide linkages. By exploiting the unique TTI molecule as a building block, supramolecular polymerization is explored based on π–π stacking and hydrophilic/hydrophobic interactions in the rates of heating/cooling process. The molecular chirality of the TTI unimer induces a preferential helicity formation in fibrous structures, while the achiral side chain allows the formation of linear nanofibers. The stacking type of supramolecular polymerization is dependent on the point chirality of the side chains. Interestingly, the supramolecular polymerization does not occur in its monomeric state due to the generation of radical anions from the imide groups upon UV irradiation. In contrast, the fibrous structure in the assembled state is maintained, owing to the intermolecular interaction. This study provides a new direction in the phototriggered control of the supramolecular chiral assembly. |
THE POLYMER SOCIETY OF KOREA