Dielectric properties of a hydrogen-bonded liquid-crystalline side-chain polymer
✍ Scribed by Kazuo Araki; Takashi Kato; Uday Kumar; Jean M. J. Fréchet
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 272 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The dielectric properties of a hydrogen‐bonded side‐chain liquid‐crystalline polysiloxane have been examined over wide ranges of frequency and temperature. This polymer has a side‐chain mesogenic moiety consisting of a benzoic acid and a stilbazole. The observed dielectric loss curves contain a component from dipole reorientation of the hydrogen‐bonded mesogenic group. It has been found to be possible that, using electrical and thermal treatments, such a polymer built through hydrogen bonding can align homeotropically.
📜 SIMILAR VOLUMES
A main chain hydrogen-bonded liquid crystalline polymer was formed by melt mixing two complementary components, A and B, which in their individual states do not exhibit liquid crystallinity. The structure of the polymer and the thermal stability of its mesophase were studied using synchrotron radiat
Supramolecular liquid-crystalline polymeric complexes based on a backbone that contains vinyl pyridine units and azobenzene or biphenyl derivatives that posses alkyl chains terminated by carboxylic acid have been obtained by the formation of intermolecular hydrogen bonds between the carboxylic acid