Journal of Materials Science

, Volume 55, Issue 5, pp 1946–1958 | Cite as

Modified reduced graphene oxide as stabilizer for Pickering w/o emulsions

  • Xue MiEmail author
  • Xingrui Wang
  • Chunjuan Gao
  • Weijun Su
  • Yuying Zhang
  • Xiaoyue Tan
  • Jianping Gao
  • Yu LiuEmail author
Chemical routes to materials


Polystyrene with π-conjugated end groups (BPS) synthesized by reversible addition–fragmentation transfer polymerization was used to modify the surface of reduced graphene oxide (rGO) sheets through ππ stacking (BPS–rGO) in order to increase their hydrophobicity and dispersibility. The modification of rGO makes it possible for BPS–rGO to stabilize Pickering w/o (water-in-oil) emulsions of small droplets, in which toluene is taken as the continuous phase and distilled water as the dispersed phase. The effects of the BPS–rGO concentration and the water/oil ratio on the Pickering emulsions were investigated. The results indicate that increasing hydrophobicity of BPS–rGO was favorable to forming stable w/o emulsions and the emulsion stability was increased with the increase in the BPS–rGO concentration or with the decrease in water/oil ratio. Using BPS–rGO to stabilize Pickering w/o emulsions is an effective and versatile approach to fabricate active materials that can be employed as catalysts for chemical reactions.



This work was supported by the National Natural Science Foundation of China (81502297, 51573126, 81402407, 81871487, 31971388), Natural Science Foundation of Shanxi Province (2013021011-5) and Tianjin Research Program of Application Foundation and Advanced Technology (15JCQNJC14600, 16JCYBJC26300).

Supplementary material

10853_2019_4066_MOESM1_ESM.doc (3.2 mb)
Supplementary material 1 (DOC 3268 kb)


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Medicine, State Key Laboratory of Medicinal Chemical BiologyNankai UniversityTianjinPeople’s Republic of China
  2. 2.School of ScienceTianjin UniversityTianjinPeople’s Republic of China
  3. 3.Institude of Tianjin Seawater Desalination and Multipurpose UtilizationState Oceanic AdministrationTianjinPeople’s Republic of China
  4. 4.Key Laboratory of Sichuan Province for Metal Fuel CellDe YangPeople’s Republic of China

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