Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion

The synthesis of polyacetylene-bearing pyrimidine-type three-ringed mesogenic core exhibiting smectic C (SmC) characteristics was conducted. Gas-phase iodine doping of the polymer provided evidence of chemical interaction between the polyene and iodine, which acted as an electron acceptor. The side-...

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Autores principales: Yatsu, Akiko, Yonehara, Takuya, Goto, Hiromasa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Brief Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7407238/
https://www.ncbi.nlm.nih.gov/pubmed/32668734
http://dx.doi.org/10.3390/polym12071547
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author Yatsu, Akiko
Yonehara, Takuya
Goto, Hiromasa
author_facet Yatsu, Akiko
Yonehara, Takuya
Goto, Hiromasa
author_sort Yatsu, Akiko
collection PubMed
description The synthesis of polyacetylene-bearing pyrimidine-type three-ringed mesogenic core exhibiting smectic C (SmC) characteristics was conducted. Gas-phase iodine doping of the polymer provided evidence of chemical interaction between the polyene and iodine, which acted as an electron acceptor. The side-chain fluorine atom tilted the mesogen moiety to form SmC as a tilted liquid crystal. The addition of a small amount of chiral inducer yielded SmC* of the polymer as the chiral version of SmC. The liquid crystallinity and electronic properties of the π-conjugated chiral liquid crystal polymer with a helical structure were evaluated.
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spelling pubmed-74072382020-08-11 Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion Yatsu, Akiko Yonehara, Takuya Goto, Hiromasa Polymers (Basel) Brief Report The synthesis of polyacetylene-bearing pyrimidine-type three-ringed mesogenic core exhibiting smectic C (SmC) characteristics was conducted. Gas-phase iodine doping of the polymer provided evidence of chemical interaction between the polyene and iodine, which acted as an electron acceptor. The side-chain fluorine atom tilted the mesogen moiety to form SmC as a tilted liquid crystal. The addition of a small amount of chiral inducer yielded SmC* of the polymer as the chiral version of SmC. The liquid crystallinity and electronic properties of the π-conjugated chiral liquid crystal polymer with a helical structure were evaluated. MDPI 2020-07-13 /pmc/articles/PMC7407238/ /pubmed/32668734 http://dx.doi.org/10.3390/polym12071547 Text en © 2020 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 Brief Report
Yatsu, Akiko
Yonehara, Takuya
Goto, Hiromasa
Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion
title Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion
title_full Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion
title_fullStr Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion
title_full_unstemmed Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion
title_short Induction of Polyacetylene to a Chiral Smectic Liquid Crystal–Chiral Direct Conversion
title_sort induction of polyacetylene to a chiral smectic liquid crystal–chiral direct conversion
topic Brief Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7407238/
https://www.ncbi.nlm.nih.gov/pubmed/32668734
http://dx.doi.org/10.3390/polym12071547
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AT yoneharatakuya inductionofpolyacetylenetoachiralsmecticliquidcrystalchiraldirectconversion
AT gotohiromasa inductionofpolyacetylenetoachiralsmecticliquidcrystalchiraldirectconversion

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