We have synthesized azobenzene-containing chiral gelators for liquid crystals (LCs), two of which, AG1 and AG2, are shown below. When dissolved in a LC host, driven by intermolecular hydrogen bonding, the gelator molecules are able to gel the LC through the formation of fibrous aggregates that lead to a non- covalent network. A variety of interesting phenomena were observed for this new type of functional materials.
"Self-assembled liquid crystal gels", Proc. SPIE 10313, Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging, 1031314 (29 August 2017); doi: 10.1117/12.2283836; https://doi.org/10.1117/12.2283836