Synthesis and mesophase analysis of diazo derivative with terminal ethoxy group: structure length-mesophase relationship

In the present study, a novel series of diazo derivatives of vinyl esters (B1-B12) were synthesized and characterized to investigate their liquid crystalline properties. The synthesized compounds were analyzed using spectral techniques (FT-IR, and 1H-NMR), thermal analysis (DSC), and phase identification through optical polarizing microscopy. This study also confirmed that molecular length has a positive effect on liquid crystal behavior by comparative study with reported work. These derivatives are intriguing candidates for improved functional materials in optoelectronic and display applications due to their thermotropic liquid crystalline behavior.