教師資料查詢 | 類別: 期刊論文 | 教師: 施增廉 SHIH, TZENGE-LIEN (瀏覽個人網頁)

標題:Stable, Low-Temperature Discotic Nematic Superstructures by Incorporating a Laterally Substituted Sidearm in Hexakis(phenylethynyl)benzene Discogens
學年96
學期1
出版(發表)日期2007/08/01
作品名稱Stable, Low-Temperature Discotic Nematic Superstructures by Incorporating a Laterally Substituted Sidearm in Hexakis(phenylethynyl)benzene Discogens
作品名稱(其他語言)
著者Chien, Shih-chien; Chen, Hsiu-hui; Chen, Hsin-chou; Yang, Yu-ling; Hsu, Hsiu-fu; Shih, Tzenge-lien; Lee, Jey-jau
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Advanced Functional Materials 17(12), pp.1896-1902
摘要A new strategy for preparing room-temperature discotic nematic materials is proposed and developed stepwise to improve various discotic nematic properties. This approach replaces one sidearm of the discotic hexakis(4-hexyloxyphenylethynyl)benzene with a tris(alkoxy) sidearm, 1-ethynyl-2,3,4-tris(hexyloxybenzene), to lower transition temperatures, manipulate discotic nematic ranges, and preserve the discotic nematic superstructure while preventing column formation. Although symmetry considerations play a role in the resulting mesogenic properties, steric hindrance and van der Waals interactions are ascribed to the superior discotic nematic properties of the newly prepared discogens containing a laterally substituted sidearm.
關鍵字Liquid crystals; discotic; nematic; Mesogens; Structure-property relationships; Supramolecular materials
語言英文
ISSN1616-301X
期刊性質國外
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產學合作
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國別德國
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