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Abstract: We report the nematic and smectic ordering in a new aqueous suspension ofmonolayer $\alpha$-Zirconium phosphate platelets possessing a highpolydispersity in diameter but uniform thickness. We observe anisotropic-nematic transition as the platelet volume fraction increases,followed by the formation of a smectic, an elusive phase that has been rarelyseen in discotic liquid crystals. The smectic phase is characterized by X-raydiffraction, high-resolution transmission electron microscopy, and opticalmicroscopy. The phase equilibria in this highly polydisperse suspension isrationalized in terms of a theoretical approach based on density-functionaltheory.



Author: Dazhi Sun, Hung-Jue Sue, Zhengdong Cheng, Yuri Martinez-Raton, Enrique Velasco

Source: https://arxiv.org/







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