含邻位羟基Schiff碱近晶相液晶中的高强向错

The High Strength Disclination Points in the Schlieren Texture of the Schiff Base Type Liquid Crystal

含邻位羟基Ｓｃｈｉｆｆ碱近晶相液晶中的高强向错张其震，崔利，孙继润（山东大学化学院，济南，２５０１００）关键词高强向错点，近晶相纹影织构，液晶纹影（Ｓｃｈｌｉｅｒｅｎ）是向列相液晶织构的常见形式，某些近晶相液晶也可出现纹影织构，其特征为以消光黑点为中...

The observation of smectic schlieren textures with singularities of high stgrength in the sample is reported.The sample is Schiff-Base type liquild crystal with ortho-hydroxy, 4-undecenoyloxy resorcylidene-4′-decyloxyaniline.The highest strength of these singularity points is-8,the singularity points with S=-6,-4,-3,-2 are also observed,and their stability is good.The forming process of the singularity points with high strength is also observed,the center of the disclination points is an isotropic area.