Sulfonated graphene oxide: the new and effective material for synthesis of polystyrene-based nanocomposites |
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Authors: | Liyuan Zhang Tiejun Shi Shengli Wu Haiou Zhou |
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Institution: | 1. School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, People’s Republic of China 2. Department of Chemistry and Environmental Engineering, Bengbu College, Bengbu, Anhui, 233000, People’s Republic of China
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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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