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Synthesis of highly loaded and well‐controlled magnetic beads via emulsion polymerization
Author(s) -
Kniajanski Sergei,
Colborn Robert E.,
Bales Brian C.,
Riccobono Orrie,
DulgarTulloch Aaron J.,
Stein Judith,
Kandapallil Binil I. I.
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38857
Subject(s) - emulsion polymerization , polystyrene , styrene , polymer chemistry , materials science , emulsion , polymerization , chemical engineering , superparamagnetism , methyl methacrylate , radical polymerization , methacrylate , suspension polymerization , copolymer , polymer , composite material , magnetization , physics , quantum mechanics , magnetic field , engineering
Superparamagnetic iron oxide (SPIO) incorporated polystyrene beads of uniform size distribution (∼170 nm) and high magnetic content (∼40%) are synthesized by emulsion styrene polymerization in the presence of functionalized SPIO. The role of surface functionality on the polymerization process and SPIO incorporation is investigated by carrying out styrene emulsion polymerizations with different functionalities on SPIO. A unique combination of oleic acid and (2‐acetoacetoxy) ethyl methacrylate as surface ligands for SPIO is used to attain the best magnetic beads. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013