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A Catalyst Platform for Unique Cationic (Co)Polymerization in Aqueous Emulsion
Author(s) -
Vasilenko Irina V.,
Yeong Hui Yee,
Delgado Marco,
Ouardad Samira,
Peruch Frédéric,
Voit Brigitte,
Ganachaud François,
Kostjuk Sergei V.
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201501157
Subject(s) - cationic polymerization , polymerization , chemistry , copolymer , styrene , polymer chemistry , emulsion polymerization , catalysis , monomer , aqueous solution , molar mass , pulmonary surfactant , emulsion , chemical engineering , organic chemistry , polymer , biochemistry , engineering
Sodium dodecyl benzene sulfonate (DBSNa) surfactants, with a polydisperse and hyperbranched structure, combined with different rare earth metal salts generate highly water‐dispersible Lewis acid surfactant combined catalysts (LASCs). This platform of new complexes promotes fast, efficient cationic polymerization of industrially relevant monomers in direct emulsion at moderate temperature. The process described here does not require high shearing, long polymerization time, or large catalyst content. It allows the reproducible generation of high‐molar‐mass homopolymers of pMOS, styrene, and isoprene, as well as random or multiblock copolymers of the latter two, in a simple and straightforward one‐pot reaction.