| 학회 |
한국고분자학회 |
| 학술대회 |
2003년 봄 (04/11 ~ 04/12, 연세대학교) |
| 권호 |
28권 1호, p.104 |
| 발표분야 |
고분자 합성 |
| 제목 |
Synthesis and Characterization of Discotic Liquid Crystalline Hydrazone Compounds |
| 초록 |
Acetoacetamides having two 1,3-diketo groups were prepared by the reaction of aromatic amines with diketene. Diazotization of aromatic was carried out with nitrous HCl or TFA. Discotic hydrazone compounds were prepared by diazo coupling reaction. The 1H NMR and FT-IR spectroscopy study showed that the compounds had hydrazone structures. The liquid crystalline properties of disk-type compounds were investigated by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Compound having flexible alkyl tails showed discotic nematic phase. Structure analysis of mesophase is performed by X-ray diffraction measurment (XRD). |
| 저자 |
정민주;김범진;장지영 |
| 소속 |
서울대 |
| 키워드 |
hydrazone; discotic liquid crystal; nematic; hydrogen bonding; polyhydrazone
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| E-Mail |
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