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Complex Inorganic/Organic Core‐Shell Particles by an Inverse Emulsion Technique
Author(s) -
Schmidtke Kathy,
Stelzig Simon H.,
Geidel Christian,
Klapper Markus,
Müllen Klaus
Publication year - 2010
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201051005
Subject(s) - materials science , nanoparticle , amphiphile , polymer , dispersion (optics) , nanocomposite , chemical engineering , copolymer , particle (ecology) , precipitation , aqueous solution , nanotechnology , chemistry , composite material , organic chemistry , optics , oceanography , physics , engineering , geology , meteorology
Two synthetic approaches to modify the surface of inorganic particles are presented. In the first approach the inorganic particles are prepared in‐situ in a confined space in inverse emulsions. The used amphiphilic statistical copolymers act not only as emulsifiers, but they also hydrophobize the remaining inorganic particles after the precipitation. This approach represents a versatile method to obtain various inorganic nanoparticles as well as more complex inorganic materials like core‐multiple shell and perovskite‐based nanoparticles. The second procedure uses preformed inorganic particles, as an aqueous dispersion, to modify them with surface active amphiphilic copolymers in a multicomponent solvent system. This method turns out to be a simple but highly efficient method to modify preformed inorganic nanoparticles. The particles are characterized by SEM, TEM and dynamic light scattering. The modified inorganic nanoparticles are suitable to be homogenously incorporated into a polymer matrix to form transparent nanocomposite materials.