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In this work, Pickering emulsion polymerization in the presence of a novel hydrophilic Zinc Oxide/polystyrene sodium sulfonate (ZnO/PSS-Na) nanocomposite particles was applied to prepare ZnO/living block copolymer latexes.In the emulsion system, 1,1-diphenylethene(DPE) controlled radical polymerization of poly(methyl methacrylate)-b-poly(butyl acrylate) was proceeded in oil phase, and ZnO/PSS-Na nanocomposite particles prepared via hydrothermal method were served as an emulsion stabilizer at the oil/water interface.