A novel calamitic liquid crystalline oligomer composed of three non-identical mesogenic entities: synthesis and characterization

CV Yelamaggad, US Hiremath, DSS Rao…

文献索引：Yelamaggad; Hiremath; Shankar Rao; Krishna Prasad Chemical Communications, 2000 , # 1 p. 57 - 58

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被引用次数: 41

摘要

Liquid crystalline dimers 1 (dimesogens) consisting of two identical (symmetrical) or non-identical (non-symmetrical) mesogenic units have gained attention as these are regarded as model compounds for main chain 2 and side chain liquid crystalline polymers. 3 The non-symmetrical dimers are markedly different from those of symmetrical ones as they exhibit interesting polymorphic sequence 4 and stabilize wide range chiral nematic (N*) 5a and smectic A (SmA) mesophases. 5b ...