Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group

Phenylene-thiophene-based liquid crystalline π-conjugated copolymers bearing mesogenic groups as side chains were synthesized via a Stille polycondensation reaction and confirmed to exhibit a nematic liquid crystal phase at appropriate temperatures. The formation of a nematic phase, but not a smecti...

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Detalles Bibliográficos
Autores principales: Kawabata, Kohsuke, Goto, Hiromasa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International 2009
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5445693/
http://dx.doi.org/10.3390/ma2010022
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author Kawabata, Kohsuke
Goto, Hiromasa
author_facet Kawabata, Kohsuke
Goto, Hiromasa
author_sort Kawabata, Kohsuke
collection PubMed
description Phenylene-thiophene-based liquid crystalline π-conjugated copolymers bearing mesogenic groups as side chains were synthesized via a Stille polycondensation reaction and confirmed to exhibit a nematic liquid crystal phase at appropriate temperatures. The formation of a nematic phase, but not a smectic phase indicates cooperation of the main chain and side chain in the formation of a nematic main-chain/side-chain liquid crystal phase. The generation of polarons in the main chain as charge carriers during in-situ vapor doping of iodine is confirmed to increase with a doping progresses, exhibiting Dysonian paramagnetic behavior typical of conductive polymers.
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spelling pubmed-54456932017-07-28 Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group Kawabata, Kohsuke Goto, Hiromasa Materials (Basel) Article Phenylene-thiophene-based liquid crystalline π-conjugated copolymers bearing mesogenic groups as side chains were synthesized via a Stille polycondensation reaction and confirmed to exhibit a nematic liquid crystal phase at appropriate temperatures. The formation of a nematic phase, but not a smectic phase indicates cooperation of the main chain and side chain in the formation of a nematic main-chain/side-chain liquid crystal phase. The generation of polarons in the main chain as charge carriers during in-situ vapor doping of iodine is confirmed to increase with a doping progresses, exhibiting Dysonian paramagnetic behavior typical of conductive polymers. Molecular Diversity Preservation International 2009-01-16 /pmc/articles/PMC5445693/ http://dx.doi.org/10.3390/ma2010022 Text en © 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Kawabata, Kohsuke
Goto, Hiromasa
Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group
title Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group
title_full Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group
title_fullStr Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group
title_full_unstemmed Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group
title_short Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group
title_sort liquid crystalline π-conjugated copolymers bearing a pyrimidine type mesogenic group
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5445693/
http://dx.doi.org/10.3390/ma2010022
work_keys_str_mv AT kawabatakohsuke liquidcrystallinepconjugatedcopolymersbearingapyrimidinetypemesogenicgroup
AT gotohiromasa liquidcrystallinepconjugatedcopolymersbearingapyrimidinetypemesogenicgroup

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