N-(4-Carboxyphenyl) trimellitimide (DAI) was synthesized from trimellitic anhydride and p-aminobenzoic acid by a one-step reaction utilizing m-cresol as a solvent. DAI was reacted with hexanediol and nonanediol to give bishydroxyhexyltrimellitimide (BHHI) and bishydroxynonyltrimellitimide (BHNI), r
Liquid crystalline epoxy resins in polymer dispersed liquid crystal composites
β Scribed by Carfagna, C.; Amendola, E.; Giamberini, M.; Hakemi, H.; Pane, S.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 365 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0959-8103
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β¦ Synopsis
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 concentrations of liquid crystal. The optical characterization of the PDLC indicates an improvement of the angular transmission of visible light.
π SIMILAR VOLUMES
The electro-optic performance characteristic of polymer-dispersed liquid crystal (PDLC) composite films out of poly(vinyl butyral) (PVB) and nematic liquid crystal (E7) have been studied for a wide range of PVB-E7 composite compositions (20 -70 wt % of E7). Composites were prepared by solvent castin