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Miscibility of blends of LC polyesters and blends of polybutylene terephthalate with LC polyester

✍ Scribed by K. Darragas; G. Groeninckx; H. Reynaers; C. Samyn

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
409 KB
Volume
30
Category
Article
ISSN
0014-3057

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✦ Synopsis

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.

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