Champagne Pier-Luc, Ester David, Ward Sandra, Williams Vance E, Ling Chang-Chun
Alberta Glycomics Centre, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada.
Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
Chempluschem. 2017 Mar;82(3):423-432. doi: 10.1002/cplu.201600556. Epub 2016 Dec 14.
A novel family of amphiphilic cyclodextrin(CD)-based liquid crystals that bear O-acetylated oligoethylene glycol chains at the secondary face is reported. Unlike most of the previously reported liquid crystals (LC) based on chemically modified CDs, which depend on H-bonding as the primary intermolecular forces, the present CD derivatives self-assemble into highly ordered smectic liquid crystal phases via the weaker dipole-dipole intermolecular interactions. The obtained materials are found to display much improved properties such as improved thermostability, reduced clearing temperatures, and better fluidity. The present work opens up new possibilities to design CD-based LC materials.
报道了一类新型的两亲性环糊精（CD）基液晶，其在二级面上带有O-乙酰化低聚乙二醇链。与大多数先前报道的基于化学修饰环糊精的液晶不同，后者依赖氢键作为主要分子间作用力，而目前的环糊精衍生物通过较弱的偶极-偶极分子间相互作用自组装成高度有序的近晶相液晶相。发现所获得的材料具有许多改进的性能，如提高的热稳定性、降低的清亮点温度和更好的流动性。本工作为设计基于环糊精的液晶材料开辟了新的可能性。
