Photo-Crosslinkable Polymers for Photostimulated Alignment of Liquid-Crystalline Materials
| Autor: | U. V. Mahilny, A. I. Stankevich |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Absorption spectroscopy business.industry 010401 analytical chemistry 02 engineering and technology Polymer 021001 nanoscience & nanotechnology Condensed Matter Physics Laser Methacrylate 01 natural sciences 0104 chemical sciences law.invention Rubbing chemistry.chemical_compound Monomer chemistry law Optoelectronics 0210 nano-technology business Spectroscopy Order of magnitude Light-emitting diode |
| Zdroj: | Journal of Applied Spectroscopy. 86:986-990 |
| ISSN: | 1573-8647 0021-9037 |
| DOI: | 10.1007/s10812-020-00927-1 |
| Popis: | Alignment of a liquid-crystalline monomer by layers of photo-crosslinkable polymers with methacrylate backbones and photo-dimerizable side groups is experimentally investigated. The studied polymers demonstrate photostimulated alignment after rubbing with a cloth, like benzaldehyde polymers. However, the exposure dose of 365-nm radiation required for them is smaller by two orders of magnitude owing to long-wavelength shifts of the absorption spectra. The availability of high-power LEDs emitting at this wavelength could potentially increase several times the productivity of the layer-alignment process for liquid-crystalline materials based on polymers exhibiting photostimulated alignment. Also, lasers emitting at 355 nm can now be used effectively for aligning hologram recording. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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