The application of supramolecular interactions such as hydrogen bonding for the formation of liquid crystals is an area of considerable scientific interest Hydrogen bonding has been used to form small molecule liquid crystals as well as main-chain and side-chain mesogenic polymers, and calamitic, discotic , banana-shaped and star-shaped iquid crystals. One of the most commonly used associations is the benzoic acid and pyridine assembly. The resulting hydrogen bond is linear and of sufficient strength to maintain structure at the temperatures needed to form a thermotropic mesogen. Here we report the inclusion of 1,6-bis-(4-pyridyloxy)hexane as an intentional disruptive agent and competitor for available hydrogen bond donors with mesogenic components. Liquid crystalline characteristics were eliminated at loadings of 75% of available pyridyl nitrogens.

Controlled contamination as a disruptive effect on hydrogen-bonded liquid crystals: 1,6-Bis-(4-pyridyloxy)hexane

251st National Meeting (2016)

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