教師資料查詢 | 類別: 期刊論文 | 教師: 徐秀福 Hsiu-fu Hsu (瀏覽個人網頁)

標題:Formation of Columnar Liquid Crystals on the Basis of Unconventional Triazine-Based Dendrimers by the C3-Symmetric Approach
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
語言英文
ISSN0947-6539: 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
國別德國
公開徵稿
出版型式電子版;紙本;
相關連結
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