About: Novel liquid crystals based on [1]benzothieno[3,2 b][1]benzothiophene

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About: Novel liquid crystals based on [1]benzothieno[3,2 b][1]benzothiophene Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Four series of new [1]benzothieno[3,2-b][1]benzothiophene derivatives have been synthesised. In the non-chiral series SmA phase occurs, while the chiral series exhibits rather wide antiferroelectric SmCA phase just below the SmA phase. The clearing pointis significantly increased when the carbonyl linkage group is used between the heterocyclic core and the alkyl chain. The SmA - SmCA phase transition is studied by DSC and by dielectric spectroscopy, which yields the type of the transition. In the SmCA phase the spontaneous quantities have been measured. The tilt angle shows typical temperature dependence for the phase transition parameter, the values of spontaneous polarisation are rather moderate. The length of the helical pitch increases with increasing length of the non-chiral alkyl chain. Four series of new [1]benzothieno[3,2-b][1]benzothiophene derivatives have been synthesised. In the non-chiral series SmA phase occurs, while the chiral series exhibits rather wide antiferroelectric SmCA phase just below the SmA phase. The clearing pointis significantly increased when the carbonyl linkage group is used between the heterocyclic core and the alkyl chain. The SmA - SmCA phase transition is studied by DSC and by dielectric spectroscopy, which yields the type of the transition. In the SmCA phase the spontaneous quantities have been measured. The tilt angle shows typical temperature dependence for the phase transition parameter, the values of spontaneous polarisation are rather moderate. The length of the helical pitch increases with increasing length of the non-chiral alkyl chain. (en)
Title	Novel liquid crystals based on [1]benzothieno[3,2 b][1]benzothiophene Novel liquid crystals based on [1]benzothieno[3,2 b][1]benzothiophene (en)
skos:prefLabel	Novel liquid crystals based on [1]benzothieno[3,2 b][1]benzothiophene Novel liquid crystals based on [1]benzothieno[3,2 b][1]benzothiophene (en)
skos:notation	RIV/60461373:22310/03:00008080!RIV/2004/GA0/223104/N
http://linked.open.../vavai/riv/strany	603-610
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA106/00/0580), P(GA202/02/0840)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Košata, Bedřich Svoboda, Jiří Kozmík, Václav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	618430
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/03:00008080
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	antiferroelectric liquid crystals, synthesis, mesomorphic behaviour (en)
http://linked.open.../riv/klicoveSlovo	antiferroelectric liquid crystals synthesis mesomorphic behaviour
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[A4037FBBE064]
http://linked.open...i/riv/nazevZdroje	Liq.Cryst.
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Next generation materials for LC-displays Structures and phases in newly synthesised liquid crystals with dipolar order
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	30
http://linked.open...iv/tvurceVysledku	Glogarová, Milada Novotná, Vladimíra Svoboda, Jiří Vaněk, Přemysl Kozmík, Václav Košata, Bedřich
issn	0267-8292
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	22310

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