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Thermotropic polyesters: synthesis and properties of highly disordered copolymers

✍ Scribed by J. Cao; G. Karayannidis; J.E. McIntyre; J.G. Tomka


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
551 KB
Volume
34
Category
Article
ISSN
0032-3861

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The effect of thermally annealing five non-crystalline liquid-crystalline copolyesters, each derived from five or more different ester-forming monomers, has been examined. Four of the compositions developed low crystallinity, which was sufficient to suppress flow at temperatures below the melting te

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## Abstract Four series of copolyesters, namely BB6‐DMT, BB5‐DMT, BB6‐DMI and BB5‐DMI series, were prepared by melt polycondensation of dimethyl 4,4′‐bibenzoate (BB) with a dimethyl phthalate (DMT: dimethyl terephthalate or DMI: dimethyl isophthalate) and an alkanediol (1,6‐hexanediol or 1,5‐pentan