中国化学快报（英文版）
中國化學快報（英文版）
중국화학쾌보（영문판）
CHINESE CHEMICAL LETTERS
2012年
2期
177-180
,共4页
Liquid crystals%Schiff base ester%Enantiotropic%Smectic A%Smectic B
A homologous series of azomethine esters,4-n-alkanoyloxybenzylidene-4’-bromoanilines possessing even number of carbon atoms at the terminal alkanoyloxy chain (Cn-1H2n-1COO-,n =8,10,12,14,16,18) was synthesized and characterized.Whilst noctanoyloxy to n-dodecanoyloxy derivatives exhibited enantiotropic smectic A and smectic B phases,n-tetradecanoyloxy to noctadecanoyloxy derivatives possessed enantiotropic smectic A and monotropic smectic B properties,n-Decanoyloxy derivatives demonstrated the optimum exhibition for both smectic A and smectic B phases.It was found that the length of terminal alkanoyloxy chain has an influence on mesomorphic properties.
