| abstract |
The invention concerns a surfactant formed by at least a particle with nanometric dimensions based on a metal oxide, hydroxide and/or oxy hydroxide, at the surface of which are bound hydrophobic organic chains, the bonds between said chains and said particle surface being non-homogeneously distributed on said surface, such that the resulting modified surface particle has an actual amphiphilic character. The invention also concerns emulsifying compositions comprising surface-modified particles with nanometric dimensions which can be said type of surfactants, and methods for preparing said emulsifying compositions. |