Azo monomers exhibiting low layer shrinkage at the SmA-SmC transition and trans-cis light-induced isomerization.

Abstract

Methacrylic monomers containing a (phenylene)azobenzene unit substituted with a lateral cyano group and alkyl chains of different length are synthesized and characterized by NMR techniques. Their liquid-crystalline properties are studied by differential scanning calorimetry, polarizing optical microscopy, and X-ray diffraction. All monomers exhibit a… (More)
DOI: 10.1002/cphc.201200585

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