132995-66-5Relevant articles and documents
Synthesis and characterization of liquid crystalline organosiloxanes containing 4-methoxyphenyl 4-(2-alkenyloxy)benzoate
Chen, Cheng-Chih,Lin, Chih-Hung
, p. 1270 - 1274 (2016/04/10)
A series of new organosiloxane liquid crystalline materials based on the 4-methoxyphenyl-4-(ù-alkenyloxy)benzoate as mesogenic units have been synthesized and their mesomorphic and physical properties have been characterized. A series of new disiloxanes and trisiloxanes contain 4-methoxyphenyl 4-(ù-alkenyloxy)benzoate as mesogenic these were synthesized by addition of 4-methoxyphenyl 4-(ù-alkenyloxy)benzoate moiety to pentamethylhydrodisiloxane or heptamethylhydrotrisiloxane catalyzed by platinum divinyltetramethyldisiloxane complex. The thermal properties of this new series of thermotropic liquid-crystalline siloxanes were studied by differential scanning calorimetry and polarized optical microscope. Disiloxane series compounds were not showed any liquid crystal phase. Trisiloxanes series compounds exhibited nematic liquid crystal phase. The siloxane molecule helped to reduce the melting temperature. The thermal properties of the new siloxane series exhibited a pronounced odd-even effect with the length of alkyl segment.
V-Shaped switching and interlayer interactions in ferroelectric liquid crystals
Petrenko, Alexey,Goodby, John W.
, p. 766 - 782 (2008/02/01)
Linear electrooptic responses in ferroelectric liquid crystals can be achieved via thresholdless switching. The molecular parameters for the design of ferroelectric liquid crystals that may yield a thresholdless response have not been delineated so far. In this article we explore some of the chemical design features that may be utilised in controlling switching processes, and we develop property-structure correlations in order to achieve materials that exhibit thresholdless behaviour. The Royal Society of Chemistry.
Antipicorpaviral herterocyclic-substituted morpholinyl alkylphenol ethers
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, (2008/06/13)
Novel (thio)morpholinyl and piperazinyl alkylphenol ethers having antirhinoviral activity, compositions containing these compounds as active ingredient, and a method of inhibiting, combating or preventing the growth of viruses in warm-blooded animals suff