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Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review
Liquid crystal is an intermediate phase between the crystalline solid and an isotropic liquid, a very common substance in our daily lives. Two major classes of liquid crystal are lyotropic, where a liquid crystal is dissolved in a specific solvent under a particular concentration and thermotropic, w...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538700/ https://www.ncbi.nlm.nih.gov/pubmed/34685221 http://dx.doi.org/10.3390/polym13203462 |
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author | Razali, Nurul Asma Jamain, Zuhair |
author_facet | Razali, Nurul Asma Jamain, Zuhair |
author_sort | Razali, Nurul Asma |
collection | PubMed |
description | Liquid crystal is an intermediate phase between the crystalline solid and an isotropic liquid, a very common substance in our daily lives. Two major classes of liquid crystal are lyotropic, where a liquid crystal is dissolved in a specific solvent under a particular concentration and thermotropic, which can be observed under temperature difference. This review aims to understand how a structure of a certain azo compound might influence the liquid crystal properties. A few factors influence the formation of different liquid crystals: the length of the alkyl terminal chain, inter/intra-molecular interaction, presence of spacer, spacer length, polarization effects, odd-even effects, and the presence of an electron-withdrawing group or an electron-donating group. As final observations, we show the compound’s different factors, the other liquid crystal is exhibited, and the structure–property relationship is explained. Liquid crystal technology is an ideal system to be applied to products to maximize their use, especially in the electronic and medical areas. |
format | Online Article Text |
id | pubmed-8538700 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85387002021-10-24 Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review Razali, Nurul Asma Jamain, Zuhair Polymers (Basel) Review Liquid crystal is an intermediate phase between the crystalline solid and an isotropic liquid, a very common substance in our daily lives. Two major classes of liquid crystal are lyotropic, where a liquid crystal is dissolved in a specific solvent under a particular concentration and thermotropic, which can be observed under temperature difference. This review aims to understand how a structure of a certain azo compound might influence the liquid crystal properties. A few factors influence the formation of different liquid crystals: the length of the alkyl terminal chain, inter/intra-molecular interaction, presence of spacer, spacer length, polarization effects, odd-even effects, and the presence of an electron-withdrawing group or an electron-donating group. As final observations, we show the compound’s different factors, the other liquid crystal is exhibited, and the structure–property relationship is explained. Liquid crystal technology is an ideal system to be applied to products to maximize their use, especially in the electronic and medical areas. MDPI 2021-10-09 /pmc/articles/PMC8538700/ /pubmed/34685221 http://dx.doi.org/10.3390/polym13203462 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Razali, Nurul Asma Jamain, Zuhair Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review |
title | Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review |
title_full | Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review |
title_fullStr | Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review |
title_full_unstemmed | Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review |
title_short | Liquid Crystals Investigation Behavior on Azo-Based Compounds: A Review |
title_sort | liquid crystals investigation behavior on azo-based compounds: a review |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538700/ https://www.ncbi.nlm.nih.gov/pubmed/34685221 http://dx.doi.org/10.3390/polym13203462 |
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