Počet záznamů: 1

Translational self-diffusion in the synclinic to anticlinic phases of a ferroelectric liquid crystal

  1. 1.
    0355611 - FZU-D 2011 RIV GB eng J - Článek v odborném periodiku
    Cifelli, M. - Domenici, V. - Dvinskikh, S.V. - Glogarová, Milada - Veracini, A.
    Translational self-diffusion in the synclinic to anticlinic phases of a ferroelectric liquid crystal.
    Soft Matter. Roč. 6, č. 23 (2010), s. 5999-6003 ISSN 1744-683X
    Grant CEP: GA AV ČR IAA100100911; GA AV ČR(CZ) GA202/09/0047; GA MŠk(CZ) OC10006
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: chiral smectogen * echo sequences * ferroelectric liquid crystal * intra-layer * molecular self-diffusion * pulsed field gradient NMR
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 4.457, rok: 2010
    http://pubs.rsc.org/en/Content/ArticleLanding/2010/SM/c0sm00536c

    In this work, the first direct measurement of inter and intra-layer molecular self-diffusion in the smectic phases of a chiral smectogen (S)-2-methylbutyl-[4′-(4"-heptyloxyphenyl)-benzoyl-4-oxy-(S)-2-((S) -2′)-benzoyl)-propionyl)]-propionate (ZLL7/*) by means of pulsed field gradient NMR is reported. Self-diffusion coefficients as low as 10 -13 m2 s-1 have been measured by combining magic echo spin decoupling with a stimulated echo sequence. The transitions among synclinic-anticlinic smectic phases are associated with a change in the self-diffusion coefficients.
    Trvalý link: http://hdl.handle.net/11104/0194343