Liquid Crystalline Esters of Dibenzophenazines

被引:7
作者
Bozek, Kevin John Anthony [1 ]
Ho, Kuan I. [1 ]
Saint-Martin, Tom [1 ,2 ]
Argyropoulos, Panos [1 ]
Williams, Vance E. [1 ]
机构
[1] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada
[2] Univ Paris 06, Dept Chem, F-75252 Paris, France
基金
加拿大自然科学与工程研究理事会;
关键词
dibenzophenazine; discotic; columnar liquid crystal; THERMAL PHASE-BEHAVIOR; DISK-LIKE MOLECULES; CHAINS; OLIGOMERS; MESOGENS; DIMERS;
D O I
10.3390/ma8010270
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A series of esters of 2,3,6,7-tetrakis(hexyloxy)dibenzo[a,c]phenazine-11-carboxylic acid was prepared in order to probe the effects of the ester groups on the liquid crystalline behavior. These compounds exhibit columnar hexagonal phases over broad temperature ranges. Variations in chain length, branching, terminal groups, and the presence of cyclic groups were found to modify transition temperatures without substantially destabilizing the mesophase range.
引用
收藏
页码:270 / 284
页数:15
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