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Surface Assisted Nucleation and Growth of Polymer Latexes on Organically‐Modified Inorganic Particles
Author(s) -
BourgeatLami Elodie,
Herrera Norma Negrete,
Putaux JeanLuc,
Reculusa Stéphane,
Perro Adeline,
Ravaine Serge,
Mingotaud Christophe,
Duguet Etienne
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200551105
Subject(s) - cationic polymerization , materials science , chemical engineering , polymer , polymer chemistry , emulsion polymerization , monomer , surface modification , nanocomposite , nucleation , styrene , butyl acrylate , acrylate , polymerization , chemistry , copolymer , organic chemistry , nanotechnology , composite material , engineering
Summary: Polymer latex particles were synthesized in the presence of inorganic particles, which had been organically‐modified to promote favorable interactions with growing macromolecules. The organic modification was performed using three different routes: (1) surface covalent grafting of vinyl trialkoxysilanes, (2) surface adsorption of polyethylene glycol‐based macromonomers, and (3) bulk modification through ion exchange with cationic monomers or cationic initiators. Two types of mineral particles were studied: commercial and self‐prepared silica particles (with diameters from 80 nm to 1 µm), and commercial laponite clay particles with a cation exchange capacity of 0.75 meq · g −1 . Emulsion polymerization was performed in the presence of styrene or butyl acrylate monomers. The morphologies of the nanocomposite particles were observed by (cryogenic) transmission electron microscopy and correlated to the organic modification procedure.