Design and synthesis of photoresponsive bent-core liquid crystals exhibiting polar smectic phases

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00639037" target="_blank" >RIV/68378271:_____/25:00639037 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/25:43933721
Result on the web
<a href="https://hdl.handle.net/11104/0369551" target="_blank" >https://hdl.handle.net/11104/0369551</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d5ma00379b" target="_blank" >10.1039/d5ma00379b</a>

Result language
angličtina
Original language name
Design and synthesis of photoresponsive bent-core liquid crystals exhibiting polar smectic phases
Original language description
Bent-core liquid crystals represent a fascinating class of self-assembling materials. This is due their unique organized fluidic states – mesophases – that are widely studied for their electrooptical and optical responses. We designed and synthesized two series of mesogens based on laterally substituted 3-hydroxybenzoic acid and tuned their properties by changing the linking group in both side-arms. Using polarizing optical microscopy, differential scanning calorimetry and x-ray diffraction, we have established the mesomorphic properties and found several types of smectic mesophases. For homologues comprising the photosensitive azo group, we have studied their switching ability in a solution as well as in mesophases employing external UV light irradiation. We have confirmed the ability of the materials to completely undergo the light-induced switching from a mesophase to isotropic liquid by on-line illumination of an x-ray sample. Unlike previously studied compounds of related structure, the studied compounds exhibited thermally unstable nematic phases and stable enantiotropic antiferroelectric polar smectic C phases. A transition from a an apolar SmC to SmCAPA phase is also documented.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/8J23FR017" target="_blank" >8J23FR017: Mesogens for organic electronics and sensors (MESOS)</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)