학회 | 한국고분자학회 |
학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
권호 | 30권 2호 |
발표분야 | 고분자 합성 |
제목 | Synthesis and Properties of New Main-chain Liquid Crystalline Polyesters Containing Banana-shaped Mesogen |
초록 | Over the past few years, a considerable number of studies have been made on the relationship between the structure and properties for the compounds composed of bent cores such as banana-shaped molecules. On the other hand, little report has been given to polymeric materials containing banana-shaped mesogen. In this study, a series of polyesters with banana-shapedmesogen were synthesized, and their liquid crystalline properties were investigated. The central core contained 2,7-naphthylene, and the carbon number of the alkylene flexible spacer varied from 9 to 12. The properties of polyesters with banana-shaped mesogen were characterized by FT/IR, NMR spectroscopy, differential scanning calorimetry, X-ray diffractometry and polarizing optical microscopy. n x = 9, 10, 11 or 12 References [1] Choi, E-J.; Ahn, J.-C.; Chien, L.-C.; Lee, C.-K.; Zin, W.-C.; Kim, D.-C.; Shin, S.-T. Macromolecules 2004, 37, 71. [2] Reddy, R.A. Sadashiva, B.K. Liq. Cryst. 2000, 27, 1613. [3] Sandra, D.; Christian,S.; Franz, S.; Katalin, F.-C. Giancarlo, G. Macromol. Rapid Commun. 2003, 24, 636. [4] Pelzl, G.; Diele, S.; Weissflog, W. Adv. Mater. 1999, 11, 707. [5] Lee, C.-K.;Primak, A.; Jakli, A.; Choi, E-J.; Zin, W.-C.; Chien, L-C. Liq.Cryst. 2001, 28, 1293 |
저자 | 최신1, 최이준1, 진왕철2 |
소속 | 1금오공과대, 2포항공과대 |
키워드 | Banana-shaped Mesogen; Liquid Crystalline Polyester |