设计并合成了一类新型的对三氟甲氧基苯酚酯类液晶,其相变行为通过DSC及偏光显微镜进行了观察和测试.这类液晶化合物都显示一个很宽的近晶A相和一个很窄的向列相,近晶A相的温度范围不随烷氧基端链的长度发生变化,而向列相的温度范围却随着烷氧基链的增长而缩小.四氟苯环的引入降低了化合物的热稳定性,压缩了近晶相,却有利于向列相的形成.三氟甲氧基有利于近晶相.
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