Theory of phase transitions in the assembly of biaxial molecules interacting via dispersion forces II: on phase transitions of flexible molecules

Previously, I investigated phase transitions in an assembly of biaxial molecules interacting via dispersion forces. Consequently, a uniaxial and two biaxial nematic phases, as well as a disco-nematic phase, were reported to appear in such an assembly of biaxial molecules. However, the investigation was performed at limited points in the space of anisotropy parameters ex and ey. In the present study, phase transitions at all points in the space of anisotropy parameters are investigated because understanding phase transitions in a system of flexible molecules, whose shape and/or anisotropy of molecular interaction change with temperature or density, is valuable and important.