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New azobenzene-based chiral-photochromic substances with thermally stable Z-isomers and their use for the induction of a cholesteric mesophase with a phototunable helix pitch

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00435954" target="_blank" >RIV/68378271:_____/14:00435954 - isvavai.cz</a>

  • Alternative codes found

    RIV/60461373:22310/14:43898292

  • Result on the web

    <a href="http://dx.doi.org/10.1039/c4tc01167h" target="_blank" >http://dx.doi.org/10.1039/c4tc01167h</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1039/c4tc01167h" target="_blank" >10.1039/c4tc01167h</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    New azobenzene-based chiral-photochromic substances with thermally stable Z-isomers and their use for the induction of a cholesteric mesophase with a phototunable helix pitch

  • Original language description

    Novel photosensitive azobenzene-containing substances with sorbitol- and lactate-based chiral fragments were synthesized to serve as chiral-photochromic dopants in cholesteric mixtures. Owing to the presence of chlorine or methyl lateral substituents inthe azobenzene fragment of the dopants, the photoinduced Z-form of their molecules is highly stable. The photooptical properties of the prepared cholesteric mixtures were studied and it was shown that UV-irradiation of the planarly-oriented films resultsin a shift of the selective light reflection wavelength to a long-wavelength spectral region due to E?Z isomerization of the azobenzene moieties. It was found that this value is almost two orders of magnitude less in comparison with the non-substitutedchiral-photochromic dopant also studied in this work. The obtained results demonstrate the promising properties of the synthesized compounds for creation of novel photoswitchable cholesteric materials.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JI - Composite materials

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2014

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of Materials Chemistry C

  • ISSN

    2050-7526

  • e-ISSN

  • Volume of the periodical

    26

  • Issue of the periodical within the volume

    40

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    8

  • Pages from-to

    8622-8629

  • UT code for WoS article

    000342994600021

  • EID of the result in the Scopus database