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  • Title: Transformation of isotropic fluid to nematic gel triggered by dynamic bridging of supramolecular nanocylinders.
    Author: Ryu JH, Lee M.
    Journal: J Am Chem Soc; 2005 Oct 19; 127(41):14170-1. PubMed ID: 16218596.
    Abstract:
    We have synthesized an amphiphilic triblock coil-rod-coil molecule consisting of a rigid aromatic building block and poly(ethylene oxide). The coil-rod-coil molecule was observed to assemble into a cylindrical micelle structure in aqueous solution. Notably, addition of a small amount of a rod-coil-rod molecule into the cylindrical micellar solution can induce the anisotropic gelation due to dynamic interconnection of adjacent cylindrical micelles via hydrophobic and pi-pi interactions. Depending on the concentration of the rod-coil-rod molecule, the nematic gel can be reversibly switched into an isotropic solution of cylindrical micelles.
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