Phase diagram of new lactic acid derivatives exhibiting ferro- and antiferroelectric phases
Result description
Rich polymorphism in a new series of lactic acid derivatives has been established. It has been confirmed that the length of non-chiral n-alkyl chain plays important role changing the sequence and temperature range of phases. Except for one homologue withthe shortest chain all compounds exhibit a rather wide antiferroelectric SmC*A phase below the ferroelectric (SmC*) and paraelectric (SmA) phases. In the SmC* and antiferroelectric (SmC*A) phases the spontaneous polarization and tilt angle have been measured. For several compounds SAXS measurements have been performed providing information about layer spacing.
Keywords
ferroelectricityantiferroelectricityliquid crystalspolymorphism
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Phase diagram of new lactic acid derivatives exhibiting ferro- and antiferroelectric phases
Original language description
Rich polymorphism in a new series of lactic acid derivatives has been established. It has been confirmed that the length of non-chiral n-alkyl chain plays important role changing the sequence and temperature range of phases. Except for one homologue withthe shortest chain all compounds exhibit a rather wide antiferroelectric SmC*A phase below the ferroelectric (SmC*) and paraelectric (SmA) phases. In the SmC* and antiferroelectric (SmC*A) phases the spontaneous polarization and tilt angle have been measured. For several compounds SAXS measurements have been performed providing information about layer spacing.
Czech name
Fázový diagram nových laktátových kapalně-krystalických derivátů, které vykazují feroelektrické a antiferoelektrické fáze
Czech description
Nové kapalně-krystalické sloučeniny obsahují laktát jako chirální jednotku a vykazují ve svém mezomorfním chování velký polymorfismus, t.j. celou řadu fází. Ukázalo se mimo jiné, že i délka nechirálního řetězce hraje důležitou roli při vytváření fázovéhodiagramu. Kromě homologu s nejkratším řetězcem (n=6) všechny materiály vykazují feroelektrické, pro větší délky řetězce také antiferoelektrické fáze.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
IAA100100710: New liquid crystals with phases switchable by the electric field.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Liquid Crystals
ISSN
0267-8292
e-ISSN
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Volume of the periodical
35
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
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UT code for WoS article
000259694100007
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BM - Solid-state physics and magnetism
Year of implementation
2008