Odd-even Effect on Liquid Crystalline Behavior for C_3-Cyclotriveratrylene(CTV) Derivatives Containing Alkoxies with Different Lengths as Peripheral Groups

作     者：CHEN Dan-mei DONG Yan-ming SHEN Bing-xing YANG Xue-hui LI Yan-jie HU Xiao-lan 

作者机构：Department of Materials Science and Engineering Xiamen University Xiamen 361005 P. R. China College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2009年第25卷第4期

页      面：579-584页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China(No.20774077) the Natural Science Foundation of Fujian Province,China(No.E0510003, E0710025) the Project of Science and Technology of Xiamen City,China(No.3502Z20055013) 

主　　题：Cyclotriveratryleues(CTV) Bowlic liquid crystal Thermotropic liquid crystal Odd-even effect 

摘      要：A series of bowlic cyclotriveratrylenes（CTV） with peripheral groups with different lengths were *** compounds were investigated by diferential scanning calorimetry and hot stage coupled polarizing *** CTV derivatives show thermotropic liquid crystalline *** experimental results of their thermotropic liquid crystalline behavior indicate that the clear points,the entropy changes of melting points,the crystallization temperatures,and their entropy changes all exhibited an evident odd-even effect except the melting points,which decreased monotonously with the increase of the length of the alkoxy *** parameter values of CTVs with even number carbon atoms were larger than those of CTVs with odd *** the length of alkoxyl chains was even longer,a monotonous decrease ***,in the case of the entropy changes of both melting points and crystallization temperatures,the effect was valid for all the six species,and therefore,the whole curves presented as a zig-zag form.