| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Phase Behaviors and Structures of a Symmetrically Tapered Biphenylamide |
| 초록 |
A symmetrically tapered biphenylamide (d-CnPhA) was newly designed and synthesized in order to investigate the supramolecular ordered structures. Major phase transitions and supramolecular structures in d-C12PhA biphenylamide were characterized by differential scanning calorimetry (DSC), one-dimensional (1D) wide angle X-ray diffraction (WAXD), 1D and 2D Fourier-transform infrared spectroscopy (FT-IR), and solid-state 13C nuclear magnetic resonance (NMR). The symmetrically tapered d-C12PhA biphenylamide formed a hexagonal columnar LC mesophase and a highly ordered columnar crystalline phase. Selected area electron diffractions (SAED) from single crystals combined with the results of WAXD and POM suggest that discotic building blocks are constructed by three d-C12PhA biphenylamides rotating 60with respect to neighboring ones and the ABC stacked discotic building blocks further self-assemble into columns and then these columns are laterally close-packed to give nanorods. |
| 저자 |
김영진1, 박수진1, 국윤배1, 이세현1, 김소은1, 김영곤1, 이명훈1, 황석호2, 정광운1
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| 소속 |
1전북대, 2한국생산기술(연) |
| 키워드 |
biphenylamide; supramolecular; LC mesophase
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| E-Mail |
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