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Wei Z.J.,Shandong Institute of Light Industry | Wei Z.J.,Key Laboratory of Processing and Testing Technology of Glass Functional Ceramics of Shandong Province | Liu W.L.,Shandong Institute of Light Industry | Liu W.L.,Key Laboratory of Processing and Testing Technology of Glass Functional Ceramics of Shandong Province | And 9 more authors.
Thin Solid Films | Year: 2010

A facile process for the one-step preparation of a fluoropolymer superhydrophobic polymer-coated surface under an ambient atmosphere was reported in this study. The block copolymer of polystyrene-block-poly (2,2,3,4,4,4-hexafluorobutyl-methacrylate), synthesized by atom transfer radical polymerization, was dissolved in a selective solvent. With the evaporation of the solvent, the block copolymer self-assembled into core/shell micelles, forming a grain-structured superhydrophobic film. The contact angle and sliding angle of the film were measured as 152.3° and 9.2°, respectively, demonstrating excellent superhydrophobic property and stability AR. The superior performance should ascribe to the introducing fluorine into the copolymer and the grain-like rough morphology of the film. © 2010 Elsevier B.V. Source


Ma H.,Shandong University | Ma H.,Key Laboratory of Processing and Testing Technology of Glass Functional Ceramics of Shandong Province | Li M.,Shandong University | Li M.,Key Laboratory of Processing and Testing Technology of Glass Functional Ceramics of Shandong Province | And 4 more authors.
Advanced Materials Research | Year: 2011

Polypyrrole (PPy) nanoparticles were successfully synthesized from the gelatin solution. PPy nanoparticles with different size and morphology are prepared by changing the preparation conditions including the gelatin concentrations, with surfactant or not. The characteristics of the obtained PPy particles was collected by scanning electron microscopy (SEM), The X-ray diffraction(XRD), Fourier transformation infrared(FT-IR) spectra and Four-probe conductivity meter. The results indicated PPy could form nanoparticles, whereas some bigger spheres occurred when the gelatin concentration is 0.05g/L and the conductivity of the PPy is 0.05S/cm. The possible mechanism was proposed that the gelatin is used as a morphology-directing agent in the polymerization process. © (2011) Trans Tech Publications, Switzerland. Source

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