Thermotropic liquid crystalline polymers containing bis(p-oxybenzoyl terephthalate) (Triad) mesogen units linked by flexible polymethylene units were prepared by melt and solution polymerization reactions. Analogous Triad polymers based on a central isophthalate group were also prepared, but these polymers, which contained non-linear rigid segments, did not exhibit liquid crystalline behaviour. Copolymers composed of a mixture of linear and non-linear Triad units were also evaluated. In addition, a series of random Triad copolymers that contained butylene terephthalate (BT) units were also synthesized in solution. The liquid crystalline behaviour of these copolymers depended on the relative number of BT moieties present.