Liquid crystal phase diagrams: A study of seven thermotropic materials

Abstract
We report and discuss the pressure–temperature phase diagrams for seven materials having liquid crystal phases: N‐ (p‐methoxybenzylidene) ‐p‐butylaniline (MBBA), N‐ (p‐ethoxybenzylidene) ‐p‐butylaniline (EBBA), N‐ (p‐methylbenzylidene) ‐p‐butylaniline (MBA), cholesteryl oleyl carbonate (COC), 4,4′‐bis (heptyloxy) ‐azoxybenzene (HAB), cholesteryl nonanoate (CN), and N‐ (p‐cyanobenzylidene) ‐p‐octyloxyaniline (CBOOA).