“…It should be emphasised, however, that the segregation of an aromatic-rich liquid crystalline phase and the subsequent compositional differentiation of the two phases of the system are strongly encouraged by the presence of aliphatic monomer units, such as E and S, that concentrate in the copolyester chains forming the matrix. In fact, as it was demonstrated recently [13], substitution of the S units of the PET-B-S-H copolyesters studied here with terephthalic acid monomer units (T) leads to practically homogeneous, highly aromatic p(E-T-B-H) copolyesters with very good thermal and mechanical properties.…”