Trapping of field-induced liquid crystalline structures by a polymeric network

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作者：

Universite de Nice - Sophia, Antipolis, Nice, France ^{[1
]}

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来源：

J Mater Sci Lett | / 21卷 / 1518-1521期

关键词：

Cholesteric liquid crystals - Crosslinking - Crystal microstructure - Electric field effects - Electron microscopy - Gelation - Molecular orientation - Nematic liquid crystals - Phase transitions - Photochemical reactions - Plastic films - Ultraviolet radiation;

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摘要：

The method of trapping field-induced structures in liquid crystal materials through the creation of a polymer network was investigated. The method was demonstrated with the new spiral texture induced by an electric field, close to the cholesteric to nematic untwisting transition. The process to obtain an undamaged film embedded in a resin was demonstrated for use in microstructural studies. The technique is valuable for the fixation of liquid crystalline structures obtained under the conditions where the usual techniques such as quenching or freezing are not possible.

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