Liquid-crystalline main chain polyesters derived fromp-phenylenediacrylic acid
- 1 January 1989
- journal article
- polymeric liquid-crystals
- Published by Taylor & Francis in Liquid Crystals
- Vol. 5 (5) , 1629-1634
- https://doi.org/10.1080/02678298908027797
Abstract
4,4′-(p-phenylenediacryloyloxy)-dibenzoyl chloride was polycondensed at 220°C with several diols in order to obtain liquid-crystalline polymers. The mesomorphic properties were studied by optical microscopy and differential scanning calorimetry. Gelation due to thermal crosslinking occurred at higher temperatures. With the exception of 2,2′-biphenyldiol derivative, all the polymers derived from aliphatic diols, dihydroxy ethers and aromatic diphenols exhibit mesogenic behaviour.Keywords
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