NDLI: Macroscopic behavior of polar nematic gels and elastomers

Content Provider	Springer Nature Link
Author	Brand, Helmut R. Pleiner, Harald Svenšek, Daniel
Copyright Year	2016
Abstract	We present the derivation of the macroscopic equations for uniaxial polar nematic gels and elastomers. We include the strain field as well as relative rotations as independent dynamic macroscopic degrees of freedom. As a consequence, special emphasis is laid on possible static and dynamic cross-couplings between these macroscopic degrees of freedom associated with the network, and the other macroscopic degrees of freedom including reorientations of the macroscopic polarization. In particular, we find static and dissipative dynamic cross-couplings between strain fields and relative rotations on one hand and the macroscopic polarization on the other that allow for new possibilities to manipulate polar nematics. To give one example each for the effects of a static and a dissipative cross-coupling: we find that a static electric field applied perpendicularly to the polar preferred direction leads to relative rotations while dynamically relative rotations can lead to transverse electric currents. In addition to a permanent network, we also consider the effect of a transient network, which is particularly important for the case of gels, melts and concentrated polymer solutions. A section on the influence of macroscopic chirality is included as well.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	12928941
Journal	The European Physical Journal E
Volume Number	39
Issue Number	11
e-ISSN	1292895X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-11-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Soft Matter: Liquid crystals Soft and Granular Matter, Complex Fluids and Microfluidics Biological and Medical Physics, Biophysics Surfaces and Interfaces, Thin Films Nanotechnology Polymer Sciences Complex Systems
Content Type	Text
Resource Type	Article
Subject	Chemistry Medicine Biophysics Materials Science Surfaces and Interfaces Biotechnology

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