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Liquid Crystals

Liquid crytals (LCs) are probably the most exciting state of matter. They attract scientists across disciplines such as chemistry, physics, materials science, and engineering—theorists and experimentalists alike. These days, you can buy quite affordable LCD TV sets around the corner, but that's just one of the many things liquid crystals can do. The selection of recent research articles presented below illustrates the broad interest in this area of soft condensed matter.

Recommended Reading

J. W. Goodby, P. J. Collings, T. Kato, C. Tschierske, H. Gleeson, P. Raynes (Eds)
Handbook of Liquid Crystals
2nd edition, Wiley-VCH, Weinheim, 2014.

Find all articles on liquid crystals in Wiley Online Library...

See the International Liquid Crystal Society's website.

Recent Articles

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Easily Processable and Programmable Responsive Semi-Interpenetrating Liquid Crystalline Polymer Network Coatings with Changing Reflectivities and Surface Topographies

Easily Processable and Programmable Responsive Semi‐Interpenetrating Liquid Crystalline Polymer Network Coatings with Changing Reflectivities and Surface Topographies

Responsive coatings based on liquid crystalline polysiloxane and reactive mesogens that change their reflectivity and topography are prepared. The semi-interpenetrating network coating is fabricated by a very simple coating technique. The polymer coatings respond quickly to temperature changes by altering color and surface topographies and these properties can be easily programed by changing the ratio between the polysiloxane and the reactive mesogens.

[Full Paper]
Augustinus J. J. Kragt, Dirk J. Broer, Albertus P. H. J. Schenning
Adv. Funct. Mater., December 05, 2017, https://doi.org/10.1002/adfm.201704756 Read article

Synthesis and Liquid Crystalline Properties of Unsymmetrically Substituted Naphthalenediimides with a Polar Headgroup: Effect of Amide Hydrogen Bonding and Alkyl Chain Length

Synthesis and Liquid Crystalline Properties of Unsymmetrically Substituted Naphthalenediimides with a Polar Headgroup: Effect of Amide Hydrogen Bonding and Alkyl Chain Length

Bringing it to a head: Unsymmetrically substituted naphthalenediimide (NDI) moieties (NDI-1 to NDI-6) are synthesized via imide formation followed by amide coupling reactions. The mesomorphic birefringent behavior of the NDI derivatives is investigated with polarizing optical microscopy (POM). Among all of the NDI derivatives, only NDI-1, NDI-2, and NDI-3 showed liquid crystalline texture.

[Full Paper]
Namdev V. Ghule, Rajesh S. Bhosale, Sidhanath V. Bhosale, Turlapati Srikanth, Nandiraju V. S. Rao, Sheshanath V. Bhosale
ChemistryOpen, November 15, 2017, https://doi.org/10.1002/open.201700151 Read article

Ionic Self-Assembled Derivative of Tetraphenylethylene: Synthesis, Enhanced Solid-State Emission, Liquid-Crystalline Structure, and Cu2+ Detection Ability

Ionic Self‐Assembled Derivative of Tetraphenylethylene: Synthesis, Enhanced Solid‐State Emission, Liquid‐Crystalline Structure, and Cu2+ Detection Ability

Supramolecular sensor: A tetraphenylethylene–surfactant complex has been designed and synthesized to possess a helical supramolecular structure with liquid crystallinity and a higher fluorescence quantum yield. Moreover, this complex exhibits highly selective and sensitive detection of Cu2+ in aqueous solution (see figure).

[Article]
Lin Lu, Xiang-Kui Ren, Rui Liu, Xu-Qiang Jiang, Lai-Yao Geng, Jun-Feng Zheng, Yakai Feng, Er-Qiang Chen
ChemPhysChem, November 14, 2017, https://doi.org/10.1002/cphc.201700926 Read article

Long-Lived Supramolecular Helices Promoted by Fluorinated Photoswitches

Long‐Lived Supramolecular Helices Promoted by Fluorinated Photoswitches

Azobenzene photoswitches combining ortho-fluorination and axial chirality are synthesized. When used as dopants in nematic liquid crystals, they promote long-lived supramolecular helices both in the dark and under illumination.

[Communication]
He Huang, Tetiana Orlova, Benjamin Matt, Nathalie Katsonis
Macromol. Rapid Commun., September 12, 2017, https://doi.org/10.1002/marc.201700387 Read article

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