Synthesis and characterization of new chiral mesogenic monomers
- 1 August 1991
- journal article
- research article
- Published by Taylor & Francis in Liquid Crystals
- Vol. 10 (2) , 207-214
- https://doi.org/10.1080/02678299108036426
Abstract
New mesogenic monomers carrying substituted biphenylyl rings linked to acryloyl or methacryloyl moieties through straight or chiral flexible spacers have been synthesized. All the investigated monomers, independent of the side group chirality, have been found to form ordered smectic phases, most probably of the S1 type. The asymmetric methyl substitution on the flexible spacer leads to an expansion of the temperature range of mesophase stability. The chiral monomers induce a helical structure when mixed with appropriate nematogens. The fingerprint texture of a contact mixture of the chiral methacrylate prepared in this work, with a nematic methacrylate synthesized previously, has been found not to change after UV-initiated polymerization.Keywords
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