Abstract
Liquid crystal oligomers, namely dimers, trimers and tetramers, consisting of cyanobiphenyl and benzylideneaniline-based mesogenic units connected by either linear or bent alkoxy or alkyl spacers are reported. These materials, although built from achiral molecules, show the spontaneously chiral heliconical twist-bend nematic (N-TB) phase. We report the relationships between the shape of the oligomer, and the N-TB phase stability, the temperature dependence of the helical pitch length and tilt angle, birefringence, and elastic constants.
Original language | English |
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Pages (from-to) | 5285-5288 |
Number of pages | 4 |
Journal | Chemical Communications |
Volume | 58 |
Issue number | 34 |
Early online date | 10 Apr 2022 |
DOIs | |
Publication status | Published - 26 Apr 2022 |
Keywords
- SYMMETRY-BREAKING
- TRIMERS
- DIMERS