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合成了两个系列以1,3,4-噻二唑为中心基团的弯曲型分子,结合偏光显微熔点仪(POM)观察和差示量热扫描法(DSC)研究了它们的液晶性能.研究发现,这两类弯曲型分子都会出现N相.其中,对称型五环酯类噻二唑弯曲型分子的熔点都较高,清亮点均超过360℃;含烯丙基非对称噻二唑类弯曲型分子熔点和清亮点温度大幅度降低,N相的温区较宽,以庚基为端基链的弯曲型分子出现N相的温度区间超过120℃.

参考文献

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