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High‐Solids‐Content Hybrid Acrylic/CeO 2 Latexes with Encapsulated Morphology Assessed by 3D‐TEM
Author(s) -
Aguirre Miren,
Paulis Maria,
Leiza Jose Ramon,
Guraya Teresa,
Iturrondobeitia Maider,
Okariz Ana,
Ibarretxe Julen
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.201300373
Subject(s) - morphology (biology) , materials science , polymer , emulsion polymerization , chemical engineering , nanoparticle , polymer chemistry , scanning electron microscope , emulsion , polymerization , transmission electron microscopy , copolymer , nanotechnology , composite material , genetics , engineering , biology
Hybrid acrylic/CeO 2 latexes with solids content as high as 50 wt% and CeO 2 content up to 1 wt% are synthesized by a seeded semibatch emulsion polymerization process. TEM images show that CeO 2 nanoparticles are randomly located within the polymer particles. The 2D trasmission electron microscopy (TEM) images are not conclusive to elucidate if CeO 2 is encapsulated in the hybrid polymer particles. A TEM tomographic analysis is presented here to assess their morphology. The study shows that the latexes synthesized present an encapsulated morphology for CeO 2 nanoparticles regardless of whether these are located at the center or borders of the polymer particles.