Title: Liquid crystal elastomers Interaction between the network and smectic ordering
Abstract: Abstract Side chain liquid crystal polymers which exhibited a smectic phase were cross-linked, both in the smectic phase and in the isotropic phase. In general, the stability of the phase of the sample at cross-linking is enhanced by this procedure. This stabilization reflects the elastic energy required to distort the polymer chain from its equilibrium conformation at the phase transition. In the case of the smectic phase, the relatively high magnitudes for the shifts in phase transition temperatures support neutron scattering data, that shows that the polymer backbone is highly constrained by the layer-like arrangement of the mesogenic units. Materials cross-linked in the isotropic phase also produce a smectic phase on cooling, although there is some destabilization of this phase, as the isotropic phase is enhanced.
Publication Year: 1993
Publication Date: 1993-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 21
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