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- Ageing in glassy polymer/liquid crystal layers doi link

Auteur(s): Antonova Krassimira, Slyusarenko Kostyantyn, Buluy Oleksander, Blanc C., Joly Stephane, Reznikov Yuriy, Nobili M.

(Article) Publié: Physical Review E: Statistical, Nonlinear, And Soft Matter Physics, vol. 83 p.050701(R) (2011)


Ref HAL: hal-00652859_v1
DOI: 10.1103/PhysRevE.83.050701
WoS: 000290722200001
Exporter : BibTex | endNote
8 Citations
Résumé:

We present in this Rapid Communication experimental evidence of an acceleration of the zenithal easy-axis dynamics of a nematic liquid crystal (NLC) with the age of a NLC-polymer layer. The comparison with other hard alignment layers strongly indicates that the polymer softness and its ability to reorient in the nematic ordering field is at the origin of the measured dynamics. The unusual acceleration of the dynamics with the polymer age is discussed in terms of this unique coupling with the NLC order. The NLC behaves like a physical plasticizer as a result of the coupling between the NLC and the polymer orders.