Formation of a host nanostructure for ferroelectric liquid crystals using thiol-ene polymers
| Autor: | Christopher N. Bowman, Eric R. Beckel, Neil B. Cramer, Tanner Davies, Donald L. Williamson, Adam W. Harant |
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| Rok vydání: | 2002 |
| Předmět: |
chemistry.chemical_classification
Nanostructure Materials science Small-angle X-ray scattering General Chemistry Polymer Condensed Matter Physics Ferroelectricity chemistry.chemical_compound Monomer Chemical engineering chemistry Polymerization Liquid crystal Phase (matter) Organic chemistry General Materials Science |
| Zdroj: | Liquid Crystals. 29:1291-1296 |
| ISSN: | 1366-5855 0267-8292 |
| DOI: | 10.1080/713935628 |
| Popis: | Liquid crystal displays are a subject of intense research interest because of their application to high definition display devices. Recently, polymer stabilized ferroelectric liquid crystals (PSFLCs) have been investigated due to the enhanced electro-optic properties of FLCs. We have utilized thiol-ene photopolymerizations to form a PSFLC system. Thiol-ene photopolymerizations are radical reactions, which proceed via a step growth reaction mechanism. During the polymerization, the polymer network structure is trapped into place due to the rapid transition from low molecular mass monomers and oligomers to high molecular mass polymer. This aspect is evidenced by phase transition data for the FLC, which indicates that the monomer and polymer are not phase separated from the FLC. Infrared dichroism shows that both monomer and polymer are ordered in parallel with the smectic layers of the FLC. Small angle X-ray scattering (SAXS) data show that both monomer and polymer are swelling the smectic layers. Thus, a p... |
| Databáze: | OpenAIRE |
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