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An Emulsifier‐Free RAFT‐Mediated Process for the Efficient Synthesis of Cerium Oxide/Polymer Hybrid Latexes
Author(s) -
Garnier Jérôme,
Warnant Jérôme,
LacroixDesmazes Patrick,
Dufils PierreEmmanuel,
Vinas Jérôme,
Vanderveken Yves,
van Herk Alex M.
Publication year - 2012
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201200093
Subject(s) - copolymer , raft , emulsion polymerization , acrylate , materials science , polymer chemistry , cerium oxide , reversible addition−fragmentation chain transfer polymerization , acrylic acid , polymerization , miniemulsion , chemical engineering , polymer , styrene , butyl acrylate , chain transfer , radical polymerization , oxide , engineering , composite material , metallurgy
Hybrid latexes based on cerium oxide nanoparticles are synthesized via an emulsifier‐free process of emulsion polymerization employing amphiphatic macro‐RAFT agents. Poly(butyl acrylate‐ co ‐acrylic acid) random oligomers of various compositions and chain lengths are first obtained by RAFT copolymerization in the presence of a trithiocarbonate as controlling agent. In a second step, the seeded emulsion copolymerization of styrene and methyl acrylate is carried out in the presence of nanoceria with macro‐RAFT agents adsorbed at their surface, resulting in a high incorporation efficiency of cerium oxide nanoparticles in the final hybrid latexes, as evidenced by cryo‐transmission electron microscopy.