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Title: Interplay between the static ordering and dynamical heterogeneities determining the dynamics of rotation and ordinary liquid phases in 1,6-anhydro-β-D-glucose
Authors: Madejczyk, Olga
Kamiński, Kamil
Kamińska, Ewa
Jurkiewicz, Karolina
Tarnacka, Magdalena
Burian, Andrzej
Paluch, Marian
Keywords: Liquid Phases; Glass-Transition; Relaxation; Viscosity; Scattering
Issue Date: 2017
Citation: Scientific Reports, (2017), nr 7, art. no 42103, s. 1-7
Abstract: In this letter, we reported thorough the structural and molecular dynamics studies on 1,6-Anhydro-β-D-glucose, the second compound reported so far that is capable to form rotator and supercooled liquid phases. In contrast to the data presented for ethanol, temperature dependences of structural dynamics in both phases are very comparable. On the other hand, X ray measurements revealed unusually long range ordering/correlations between molecules in the ODIC (d â ‰ 95 Å) and supercooled phases (d â ‰ 30-40 Å) of this carbohydrate. Our consideration clearly demonstrated that the interplay between length scales of static range ordering and dynamical heterogeneities as well as internal molecular arrangement seem to be the key to understanding the molecular dynamics of different materials characterized by varying degree of disorder in the vicinity of the glass transition temperature.
DOI: 10.1038/srep42103
ISSN: 2045-2322
Appears in Collections:Artykuły (WNŚiT)

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