European Polymer Journal vol:30 issue:10 pages:1165-1171
Blends of liquid crystalline polyesters with liquid crystalline polyesters and a semi-crystalline aromatic polyester, poly(butylene terephthalate) (PBT), have been investigated. Blends were prepared by the dissolution/co-precipitation method and by melt-mixing in the mesophase; they were characterized by optical microscopy, d.s.c., small-angle laser light scattering and X-ray diffraction. Liquid crystalline polyesters which only differ in the length of the flexible spacers show complete miscibility. For PBT/liquid crystalline polyester blends, the experimental results indicate the occurrence of partial miscibility.