期刊論文
| 學年 | 100 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2012-05-01 |
| 作品名稱 | Formation of Columnar Liquid Crystals on the Basis of Unconventional Triazine-Based Dendrimers by the C3-Symmetric Approach |
| 作品名稱（其他語言） | |
| 著者 | Lai, Long-Li; Hsu, Shun-Ju; Hsu, Hui-Chu; Wang, Sheng-Wei; Cheng, Kung-Lung; Chen, Chun-Jung; Wang, Tsai-Hui; Hsu, Hsiu-Fu |
| 單位 | 淡江大學化學學系 |
| 出版者 | Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA |
| 著錄名稱、卷期、頁數 | Chemistry - A European Journal 18(21), pp.6542-6547 |
| 摘要 | Two series of unconventional triazine-based dendrimers with C2 symmetry and C3 symmetry were prepared. The newly prepared C3-symmetrical dendrimers were characterized by 1H and 13C NMR spectroscopy, mass spectrometry, and elemental analysis. Differential scanning calorimetry, polarizing microscopy, and powder XRD showed that the C3-symmetrical dendrimers display columnar liquid-crystalline phases during thermal treatment, but the C2-symmetrical dendrimers were not observed to behave correspondingly. The molecular conformations of C3- and C2-symmetrical dendrimers were obtained by computer simulation with the MM2 model of the CaChe program in the gas phase. The simulation results reasonably explain the different mesogenicities of C3- and C2-symmetric dendrimers. This new strategy should be applicable to other types of unconventional dendrimers with rigid frameworks for displaying columnar liquid-crystalline behavior. |
| 關鍵字 | dendrimers; liquid crystals; molecular mechanics calculations; nitrogen heterocycles |
| 語言 | en |
| ISSN | 0947-6539: 1521-3765 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Lai, Long-Li; Hsu, Hsiu-Fu |
| 審稿制度 | 是 |
| 國別 | DEU |
| 公開徵稿 | |
| 出版型式 | 電子版 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/80012 ) |