Liquid crystalline epoxy resins can be used as a matrix to encapsulate low molecular weight liquid crystalline droplets to produce PDLC devices. The presence of the low mass liquid crystal decreases the rate of reaction of the resin, that also hardens in a mesomorphic structure for high concentratio
Liquid-crystalline epoxies dispersed liquid crystals
โ Scribed by Cui-Lian Lin; Liang-Chy Chien
- Book ID
- 102491820
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 477 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1022-1336
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โฆ Synopsis
Abstract
Dispersing liquid crystal droplets in a rigid polymer matrix results in an electrically controllable light scattering medium. A polymer with high glass transition temperature phaseโseparated with a low molecular weight liquidโcrystalline material is a good binder for polymer dispersed liquid crystals (PDLC). Mainโchain liquidโcrystalline epoxies were synthesized for the phase separation with low molecular weight nematic liquid crystals E7 (mixture of 4โalkylโ4โฒโcyanobiphenyls) and studied for their mesomorphic properties and response to an applied electrical field.
๐ SIMILAR VOLUMES
Nematic liquid crystals (LC) were embedded in a highly structured gelatin film as the discrete phase in the form of droplets. Thereby, the gelatin matrix forces a preferred orientation of the LC molecules in the droplets, initiated by the interaction between the triple helices of gelatin and the LC