Number of the records: 1
New photoswitchable mesogenic polyurethanes with gelation ability
- 1.0486363 - FZÚ 2018 RIV GB eng J - Journal Article
Topnani, N. - Kašpar, Miroslav - Hamplová, Věra - Gorecka, E. - Pociecha, D.
New photoswitchable mesogenic polyurethanes with gelation ability.
Journal of Materials Chemistry C. Roč. 2, č. 48 (2014), s. 10357-10361. ISSN 2050-7526. E-ISSN 2050-7534
Institutional support: RVO:68378271
Keywords : liquid-crystalline polymers * side-chain * mesomorphic properties * B-4 phase * diols * order * gels
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.696, year: 2014
We report a new series of thermotropic side-chain liquid crystalline polyurethanes comprising photosensitive three ring chiral mesogen and a flexible methylene spacer. All compounds, polymers, as well as monomeric precursors, display the smectic-type phases. Because of the presence of the azo group in molecular structure, the materials exhibit reversible photoisomerization process. It was also found that the polyurethanes show the gelation ability for several organic solvents, and the obtained gels are thermo-and photo-reversible.
Permanent Link: http://hdl.handle.net/11104/0281195
Number of the records: 1