Thermotropic Liquid Crystalline Aromatic Copolyesters with Flexible Spacers
β Scribed by Jing-Sheng Bao; Hong-Ni Fan
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 909 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0959-8103
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A copolyester was prepared from p-hydroxybenzoic acid (HBA), 2,6-naphthalene dicaboxylic acid (NDA), and hydroquinone (HQ). Thermal transition behavior and the crystal structure of this copolyester were investigated by using polarized light microscopy (PLM), differential scanning calorimetry (DSC),
## Abstract Two series of fluorineβcontaining liquid crystalline polyesters were synthesized from fluorinated alkylene diols and mesogenic acid dichlorides. The thermal behaviour of the polymers differs considerably from that of their hydrocarbon analogues. Formation of a nematic phase was observed