About: A liquid crystalline co-polysiloxane with asymmetric bent-shaped side chains

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A co-polysiloxane has been prepared with an asymmetric bent-shaped side group based on a liquid crystalline monomer exhibiting the B2 (SmCP) phase, namely [4-(4’-undecenyloxy)biphenyl] [4-(4’-octyloxybiphenyl)-oxycarbonyl-4-(2-methoxyphenyl)] isophthalate. In order to dilute the side chain mesogens along the polymer backbone the octyl side chains were also incorporated. The X-ray studies confirmed that resulting co-polysiloxane exhibits a liquid crystalline layered phase, the siloxane polymer chains being microphase segregated from the incompatible side chain mesogens. The mesophase of polymer exhibits the homeotropic structure that can be successfully aligned by unidirectional shear. This phase does not exhibit polar switching under an applied electric field unlike the bent-core monomer, used as the side chains of this polymer. This can be caused by the homeotropic alignment of the polymer samples. A co-polysiloxane has been prepared with an asymmetric bent-shaped side group based on a liquid crystalline monomer exhibiting the B2 (SmCP) phase, namely [4-(4’-undecenyloxy)biphenyl] [4-(4’-octyloxybiphenyl)-oxycarbonyl-4-(2-methoxyphenyl)] isophthalate. In order to dilute the side chain mesogens along the polymer backbone the octyl side chains were also incorporated. The X-ray studies confirmed that resulting co-polysiloxane exhibits a liquid crystalline layered phase, the siloxane polymer chains being microphase segregated from the incompatible side chain mesogens. The mesophase of polymer exhibits the homeotropic structure that can be successfully aligned by unidirectional shear. This phase does not exhibit polar switching under an applied electric field unlike the bent-core monomer, used as the side chains of this polymer. This can be caused by the homeotropic alignment of the polymer samples. (en)
Title	A liquid crystalline co-polysiloxane with asymmetric bent-shaped side chains A liquid crystalline co-polysiloxane with asymmetric bent-shaped side chains (en)
skos:prefLabel	A liquid crystalline co-polysiloxane with asymmetric bent-shaped side chains A liquid crystalline co-polysiloxane with asymmetric bent-shaped side chains (en)
skos:notation	RIV/68378271:_____/11:00359391!RIV12-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/09/0047), P(IAA100100911), P(MEB050818), P(OC10006), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Bubnov, Alexej Kašpar, Miroslav Glogarová, Milada Novotná, Vladimíra Hamplová, Věra
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	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	183861
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00359391
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	calorimetry; liquid-crystalline polymers (LCP); phase behaviou; polysiloxanes (en)
http://linked.open.../riv/klicoveSlovo	calorimetry liquid-crystalline polymers (LCP) phase behaviou polysiloxanes
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[D98EE786E9AB]
http://linked.open...i/riv/nazevZdroje	Macromolecular Chemistry and Physics
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Multifunctional liquid crystalline materials with a dipolar order. Molecular structure and phases of new polar liquid crystals New functional materials with fluorinated chains and photosensitive groups in mesogenic molecules Phases and Structures Formed by New Bent-Shaped Molecules.
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	212
http://linked.open...iv/tvurceVysledku	Bubnov, Alexej Galli, G. Glogarová, Milada Hamplová, Věra Kašpar, Miroslav Novotná, Vladimíra Pociecha, D.
http://linked.open...ain/vavai/riv/wos	000287056700009
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	1022-1352
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/macp.201000356
is http://linked.open...avai/riv/vysledek of	A liquid crystalline co-polysiloxane with asymmetric bent-shaped side chains A liquid crystalline co-polysiloxane with asymmetric bent-shaped side chains

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