Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment

We provide experimental evidence for the influence of the molecular structure of the nematic liquid crystal (NLC) on the photoalignment process in three dimensions at the interface with a polymer layer. In particular, the experimental findings are explained through the presence (or absence) of the [...

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Autores principales: Nassrah, Ameer R. K., Jánossy, István, Kenderesi, Viktor, Tóth-Katona, Tibor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825733/
https://www.ncbi.nlm.nih.gov/pubmed/33430256
http://dx.doi.org/10.3390/polym13020193
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author Nassrah, Ameer R. K.
Jánossy, István
Kenderesi, Viktor
Tóth-Katona, Tibor
author_facet Nassrah, Ameer R. K.
Jánossy, István
Kenderesi, Viktor
Tóth-Katona, Tibor
author_sort Nassrah, Ameer R. K.
collection PubMed
description We provide experimental evidence for the influence of the molecular structure of the nematic liquid crystal (NLC) on the photoalignment process in three dimensions at the interface with a polymer layer. In particular, the experimental findings are explained through the presence (or absence) of the [Formula: see text] aromatic interactions between the NLC and the polymer. The influence of the nematic-to-smectic A phase transition on the photocontrol is also addressed. Furthermore, we demonstrate that the photo-induced reorientation scenarios can be eventually connected to conformational changes in the photosensitive polymer.
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spelling pubmed-78257332021-01-24 Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment Nassrah, Ameer R. K. Jánossy, István Kenderesi, Viktor Tóth-Katona, Tibor Polymers (Basel) Article We provide experimental evidence for the influence of the molecular structure of the nematic liquid crystal (NLC) on the photoalignment process in three dimensions at the interface with a polymer layer. In particular, the experimental findings are explained through the presence (or absence) of the [Formula: see text] aromatic interactions between the NLC and the polymer. The influence of the nematic-to-smectic A phase transition on the photocontrol is also addressed. Furthermore, we demonstrate that the photo-induced reorientation scenarios can be eventually connected to conformational changes in the photosensitive polymer. MDPI 2021-01-07 /pmc/articles/PMC7825733/ /pubmed/33430256 http://dx.doi.org/10.3390/polym13020193 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Nassrah, Ameer R. K.
Jánossy, István
Kenderesi, Viktor
Tóth-Katona, Tibor
Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment
title Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment
title_full Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment
title_fullStr Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment
title_full_unstemmed Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment
title_short Polymer–Nematic Liquid Crystal Interface: On the Role of the Liquid Crystalline Molecular Structure and the Phase Sequence in Photoalignment
title_sort polymer–nematic liquid crystal interface: on the role of the liquid crystalline molecular structure and the phase sequence in photoalignment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825733/
https://www.ncbi.nlm.nih.gov/pubmed/33430256
http://dx.doi.org/10.3390/polym13020193
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