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| rdf:type
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| Description
| - Byla syntetizována a studována nová serie materiálů s chirální částí odvozenou od kyseliny mléčné mající metoxy skupinu jako laterální substituent v různých polohách. Byly porovnány varianty s připojením nechirálního řetězce přes esterovou nebo etherovou skupinu. V závislosti na molekulární struktuře materiály vykazují cholesterickou, TGBA*, SmA* a SmC* fázi. Pro případ jak esterového tak etherového připojení koncového řetězce a methoxy substituci na nejbližším nebo druhém nejbližším kruhu k nechirálnímu řetězci tyto fáze kompletně vymizely. Naopak substituce na kruhu nejbližším chirálnímu řetězci vede k látce s malou změnou tloušťky vrstvy na přechodu SmA*-SmC* (deVries chování). Byly studovány teplotní závislosti spontánní polarizace, spontánního úhlu náklonu a tloušťky vrstvy stejně jako dielektrické permitivity a diskutovány ve vztahu ke struktuře molekuly. (cs)
- New series of materials with the chiral part derived from the lactic acid and possessing the methoxy group as a lateral substituent in different positions of the molecular core have been synthesized and studied. A variant with the ester or ether linkage of the non-chiral chain is also checked. Depending on the molecule structure, the cholesteric, TGBA*, SmA* and SmC* phases have been detected. In variants with the ester linkage and methoxy substitution at the nearest and the next nearest phenyl ring to the non-chiral chain these phases completely disappears. On the other hand the substitution on the phenyl ring close to the chiral chain provides a compound with low layer shrinkage at the SmA*-SmC* phase transition (%22de Vries%22 behaviour). Temperature dependences of the spontaneous polarization, the spontaneous tilt angle, the layer spacing values as well as the complex dielectric permittivity have been studied and obtained results are discussed in relation to the molecular structure.
- New series of materials with the chiral part derived from the lactic acid and possessing the methoxy group as a lateral substituent in different positions of the molecular core have been synthesized and studied. A variant with the ester or ether linkage of the non-chiral chain is also checked. Depending on the molecule structure, the cholesteric, TGBA*, SmA* and SmC* phases have been detected. In variants with the ester linkage and methoxy substitution at the nearest and the next nearest phenyl ring to the non-chiral chain these phases completely disappears. On the other hand the substitution on the phenyl ring close to the chiral chain provides a compound with low layer shrinkage at the SmA*-SmC* phase transition (%22de Vries%22 behaviour). Temperature dependences of the spontaneous polarization, the spontaneous tilt angle, the layer spacing values as well as the complex dielectric permittivity have been studied and obtained results are discussed in relation to the molecular structure. (en)
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| Title
| - Effect of lateral methoxy substitution on mesomorphic and structural properties of ferroelectric liquid crystals
- Effect of lateral methoxy substitution on mesomorphic and structural properties of ferroelectric liquid crystals (en)
- Efekt laterální substituce metoxyskupinou na mezomorfní a strukurní vlastnosti feroelektrických kapalných krystalů (cs)
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| skos:prefLabel
| - Effect of lateral methoxy substitution on mesomorphic and structural properties of ferroelectric liquid crystals
- Effect of lateral methoxy substitution on mesomorphic and structural properties of ferroelectric liquid crystals (en)
- Efekt laterální substituce metoxyskupinou na mezomorfní a strukurní vlastnosti feroelektrických kapalných krystalů (cs)
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| skos:notation
| - RIV/68378271:_____/08:00318567!RIV09-AV0-68378271
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(GA202/05/0431), P(IAA100100710), Z(AV0Z10100520)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68378271:_____/08:00318567
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - ferroelectric liquid crystal; chiral materials; x-ray diffraction; dielectric properties; layer shrinkage; spontaneous polarisation (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Glogarová, Milada
- Giesselmann, F.
- Hamplová, Věra
- Kašpar, Miroslav
- Novotná, Vladimíra
- Bubnov, Alexej M.
- Kapernaum, N.
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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