Design of polymer liquid crystals with non-covalent bonds

In order to obtain effective non-covalent bonds, complementary functional groups are usually necessary. Strong hydrogen bonds, for example, can be generated by the use of carboxylic acid and pyridine moeities. Ionic bonds can be created by proton transfer from sulfonic acid to basic amine moieties, or by ion exchange involving sulfonate and ammonium groups. [Pg.59]

Mechanical and Thermophysical Properties of Polymer Liquid Crystals Edited by W. Brostow [Pg.59]

To obtain comb-like or side chain-like architecture, a monofunctional, low molar mass mesogen (or monomer liquid crystal, MLC) can be complexed to a polymer possessing complementary groups. The non-covalent bond may then be located within or near the polymer [Pg.60]

The creation of PLCs with noncovalent bonds has been termed supramolecular chemistry or molecular recognition-directed self-assembly. The application of these concepts to a variety of systems, including PLCs, has been reviewed by Lehn [1-3]. A first general overview of non-covalently bonded PLCs is given in reference [4]. [Pg.61]

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