W-shaped mesogens and variations of their molecular structure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00517759" target="_blank" >RIV/68378271:_____/19:00517759 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1080/02678292.2019.1573328" target="_blank" >https://doi.org/10.1080/02678292.2019.1573328</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/02678292.2019.1573328" target="_blank" >10.1080/02678292.2019.1573328</a>

Jazyk výsledku

angličtina

Název v původním jazyce

W-shaped mesogens and variations of their molecular structure

Popis výsledku v původním jazyce

New bent-core liquid crystalline dimers with W-shape molecular geometry have been prepared and studied. We have modified dimer shape by variation of the connecting part between two bent-core units and changing the terminal chains (perfluroalkyl, siloxanealkyl). Additionally, we have altered the inner bend angle value (120°, 60°, and 148°) by utilization of different aromatic units. Mesomorphic properties of new dimers were established based on the texture observation in the polarizing microscope and DSC measurements. Moreover, x-ray structural analysis has been performed for selected dimers to confirm phase identification. For most of the studied dimers nematic or columnar phases has been detected, for several compounds appearing in a nematic-columnar phase sequence on cooling from the isotropic phase. We have tried to generalize and compare presented data with corresponding monomers and previously studied dimers.n

Název v anglickém jazyce

W-shaped mesogens and variations of their molecular structure

Popis výsledku anglicky

New bent-core liquid crystalline dimers with W-shape molecular geometry have been prepared and studied. We have modified dimer shape by variation of the connecting part between two bent-core units and changing the terminal chains (perfluroalkyl, siloxanealkyl). Additionally, we have altered the inner bend angle value (120°, 60°, and 148°) by utilization of different aromatic units. Mesomorphic properties of new dimers were established based on the texture observation in the polarizing microscope and DSC measurements. Moreover, x-ray structural analysis has been performed for selected dimers to confirm phase identification. For most of the studied dimers nematic or columnar phases has been detected, for several compounds appearing in a nematic-columnar phase sequence on cooling from the isotropic phase. We have tried to generalize and compare presented data with corresponding monomers and previously studied dimers.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GA18-14497S" target="_blank" >GA18-14497S: Funkční organické-anorganické nanostruktury vykazující samouspořádání</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Liquid Crystals

ISSN

0267-8292

e-ISSN

—

Svazek periodika

46

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

816-824

Kód UT WoS článku

000467257100017

EID výsledku v databázi Scopus

2-s2.0-85061085969