Molecular Structure in the Crystalline Phase of a Segmented Liquid Crystalline Polyester
β Scribed by Acierno, Domenico; Concilio, Simona; Iannelli, Pio; Vacca, Paolo
- Book ID
- 126220566
- Publisher
- American Chemical Society
- Year
- 2000
- Tongue
- English
- Weight
- 386 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0024-9297
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π SIMILAR VOLUMES
The molecular structure of the phase-stable at room temperature-for the polymer with formula ), space group P6 3 , six chains per unit cell (d calcd Ο 1.23 g cm Οͺ3 ). The six chains are packed together to give a bundle with the center of mass set at the origin of the unit cell. The allyl groups are
## Abstract Quenched nematic films of a liquid crystalline polyester were crystallized either thermally or by solvent induced crystallization, and their structural organization was analyzed. All techniques show that the thermal crystallization transforms part of the nematic phase into a crystalline
## Abstract Conformational and packing energy analyses have been performed by molecular mechanics calculations on the polyester derived from the condensation of 2β(4βhydroxyphenyl)β6βhydroxybenzoxazole with terephthalic acid, which presents a high degree of crystallinity in spite of the headβtoβtai