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Highly Filled Polystyrene/Laponite Hybrid Nanoparticles Prepared Using the Ad‐miniemulsion Polymerisation Technique
Author(s) -
Zengeni Eddson,
Hartmann Patrice C.,
Pasch Harald
Publication year - 2013
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201200330
Subject(s) - miniemulsion , polystyrene , polymerization , materials science , pulmonary surfactant , cationic polymerization , polymer chemistry , chemical engineering , nanoparticle , emulsion polymerization , sonication , radical polymerization , composite material , polymer , nanotechnology , engineering
The preparation of highly filled polystyrene/Laponite (PS/Lap) hybrid nanoparticles by the ad‐miniemulsion polymerisation technique, using conventional free‐radical polymerisation, is described. Laponite (Lap) is first modified with a polymerisable cationic surfactant. Then, using a second surfactant dispersions are prepared under sonication. A stable hybrid miniemulsion is obtained after mixing and co‐sonicating both miniemulsions. The polymerisation is conducted using an oil‐soluble initiator to obtain hybrid nanoparticles. PS/Lap hybrid nanoparticles are effectively prepared with clay contents as high as 50 wt%. TEM reveals that the highly filled hybrid latexes (≥30 wt%) exhibit encapsulated morphology with homogeneously distributed clay platelets.