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Emulsion Polymerization Using Janus Particles as Stabilizers
Author(s) -
Walther Andreas,
Hoffmann Martin,
Müller Axel H. E.
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200703224
Subject(s) - polybutadiene , methacrylic acid , pickering emulsion , janus , emulsion polymerization , janus particles , monomer , polystyrene , dispersion polymerization , dispersion (optics) , particle (ecology) , polymer chemistry , polymerization , methyl methacrylate , polymer science , coagulation , chemical engineering , emulsion , styrene , methacrylate , materials science , copolymer , polymer , nanotechnology , composite material , physics , optics , engineering , psychology , oceanography , psychiatry , geology
Two‐faced particles : The emulsion polymerization of monomers in the presence of Janus particles, which combine the Pickering effect with amphiphilicity, leads to well‐defined and stable latex dispersions (see picture). Only a few Janus beads are necessary on a latex particle surface to sufficiently stabilize the dispersion against coagulation. PB=polybutadiene, PS=polystyrene, PMMA=poly(methyl methacrylate), PMAA=poly(methacrylic acid).