Thermo-responsive chiral column by scissoring motion from rigid–flexible aromatic rod assembly
writer：Shen Chen, Danfeng Deng, Siying Xie, ShanShan Wu, Jing Peng, Cong Ma, Ping Xu, Dongyan Tang, Xiaohon
keywords：thermo-responsive supramolecular，scissoring motion，supramolecular chirality
source：期刊
specific source：European Polymer Journal
Issue time：2015年
Here, we report thermo-responsive chiral columns from self-assembled coil-rod-coil molecules. The rigid rods self-assemble into multiplying dimers which stack on the top of one another to form non-chiral columnar crystal. Notably, the achiral crystal transforms into 2D hexagonally ordered liquid crystal with supramolecular chirality as heating. The reversible chiral switching
behavior within columnar structures arises from scissoring motion from neighbored molecules driven by high thermal entropy of flexible chains relative to stiff-rod.