Počet záznamů: 1

Effect of molecular structure and thermal treatment on photooptical properties of photochromic azobenzene-containing polymers films

  1. 1.
    0359467 - FZU-D 2012 RIV DE eng J - Článek v odborném periodiku
    Bobrovsky, A. - Shibaev, V. - Bubnov, Alexej - Hamplová, Věra - Kašpar, Miroslav - Pociecha, D. - Glogarová, Milada
    Effect of molecular structure and thermal treatment on photooptical properties of photochromic azobenzene-containing polymers films.
    Macromolecular Chemistry and Physics. Roč. 212, č. 4 (2011), s. 342-352 ISSN 1022-1352
    Grant CEP: GA AV ČR IAA100100911; GA AV ČR(CZ) GA202/09/0047; GA MŠk(CZ) OC10006
    Grant ostatní: Federal Agency for Science and Innovation, Russian Federation(RU) RFASI No 02.740.11.5166
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: calorimetry * liquid-crystalline polymers (LCP) * monomers phase behavior * polysiloxanes
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.361, rok: 2011
    http://onlinelibrary.wiley.com/doi/10.1002/macp.201000534/pdf http://onlinelibrary.wiley.com/doi/10.1002/macp.201000534/pdf

    Three novel photochromic azobenzene-containing comb-shaped polyacrylates were synthesized and their phase behaviour and photooptical properties were studied. An influence of the side photochromic group structure, thermal treatment and light irradiation on aggregation azobenzene chromophores in thin spin-coated films of the polymers was investigated in detail. A special attention was paid to study the photoorientation processes in polymers films induced by polarized blue light (473 nm). The relationship between photochromic group architecture, phase behaviour, thermal treatment of films and kinetics of chromophore photoorientation was established and discussed. It was found, that position of the N=N bond in chromophores plays important role in kinetics of the process, but does not affect the maximum value of dichroism.
    Trvalý link: http://hdl.handle.net/11104/0197252