Abstract
The new sulfonated graphene oxide (S-GO) was prepared and firstly used as effective materials for the synthesis of polystyrene/graphene nanocomposites via Pickering emulsion polymerization. The functionalized, chemically modified GO nanosheets were obtained via facile covalent functionalization with a reactive surfactant, sulfanilic acid. It was found that Pickering emulsion could be formed by simple self-assembly method using the S-GO as a stabilizer (just need 1 wt% relative to the oil phase), which could be adsorbed at the oil–water interface to stabilize the emulsion effectively. After the Pickering emulsion polymerization of styrene, the polystyrene/S-GO nanocomposites were prepared successfully. It is noteworthy that the S-GO not only could be used as a highly effective surfactant for styrene monomers but also could be homogeneously dispersed and incorporated into the polymeric matrix.
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Acknowledgments
We gratefully acknowledge financial support by the National Natural Science Foundation of China (grant nos. 51273054 and 50973024) and the Natural Science Foundation of Anhui Province’s Higher Education of China (no. KJ2009B212Z).
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Zhang, L., Shi, T., Wu, S. et al. Sulfonated graphene oxide: the new and effective material for synthesis of polystyrene-based nanocomposites. Colloid Polym Sci 291, 2061–2068 (2013). https://doi.org/10.1007/s00396-013-2943-8
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DOI: https://doi.org/10.1007/s00396-013-2943-8