Stable smectic phase in suspensions of polydisperse colloidal platelets with identical thickness.
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We report the nematic and smectic ordering in an aqueous suspension of monolayer alpha -Zirconium phosphate platelets possessing a high polydispersity in diameter but uniform thickness. We observe an isotropic-nematic transition as the platelet volume fraction increases, followed by the formation of a smectic, an elusive phase that has been rarely seen in discotic liquid crystals. The smectic phase is characterized by x-ray diffraction high-resolution transmission electron microscopy, and optical microscopy. The phase equilibria in this highly polydisperse suspension are rationalized in terms of a theoretical approach based on density-functional theory.
Phys Rev E Stat Nonlin Soft Matter Phys
author list (cited authors)
Sun, D., Sue, H., Cheng, Z., Martnez-Ratn, Y., & Velasco, E.
complete list of authors
Sun, Dazhi||Sue, Hung-Jue||Cheng, Zhengdong||Martínez-Ratón, Yuri||Velasco, Enrique