Microstructure of a Discotic Polymer as Revealed by Electron Diffraction and High-Resolution Imaging



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The arrangement of the columns in a liquid crystalline discotic polymer can be made visible by high resolution electron microscopy (see picture on the right). A two-dimensional hexagonal ordering of the columns is observed; specific packing defects can also be detected. These findings are supported by computer processing of the images.—The discotic polymer is formally a polyester of tetrakis(pentyloxy)triphenylenediol and hexadecanoic diacid.