Wyniki wyszukiwania:

A number of mesogenic homologous series are reported having -COO-, -CH=N-, -N=N-, -CH=CH-, -CH=CH-COO-, -C=C-,etc. groups as central linkages. Many mesogenic homologous series contain two central linkages, both of them may either be ester or azomethine groups or one of them may be ester and the other azomethine. We were looking forward to synthesize a homologues which gives smectogenic tendencies, moreover it would be quite interesting to further evaluate the effect of amide central linkage on Nematic systems. With this in view, homologues were synthesized and their liquid crystalline...

Mesogens are disordered solids or ordered liquids because they arise from a unique state of matter that exhibits both solid- and liquid-like properties called the liquid crystalline state.This liquid crystalline state (LC) is called the mesophase and occurs between the crystalline solid (Cr) state and the isotropic liquid (Iso) state at distinct temperature ranges. The liquid crystal properties arise because mesogenic compounds are composed of rigid and flexible parts, which help characterize the order and mobility of its structure.The rigid components align mesogen moieties in one direction...