Ab Initio Emulsion Atom-Transfer Radical Polymerization

Angewandte Chemie
Francesca LorandiKrzysztof Matyjaszewski

Abstract

Stable latexes of poly(meth)acrylates with predetermined molecular weights, narrow molecular-weight distributions, and controlled architecture were prepared by true ab initio emulsion atom-transfer radical polymerization. Water-soluble (macro)initiators in combination with a hydrophilic catalyst, Cu/tris(2-pyridylmethyl)amine, initiated the polymerization in the aqueous phase. The catalyst strongly interacted with the surfactant sodium dodecyl sulfate (SDS), thereby tuning the polymerization within nucleated hydrophobic polymer particles. Long-term stable latexes were obtained, even with SDS loading below 3 wt % relative to monomer. Block and gradient copolymers were prepared in situ. The reaction volume and solid content were successfully increased to 100 mL and 40 vol %, respectively, thus suggesting facile scale-up of this technique. The proposed setup could be integrated in existing industrial plants used for emulsion polymerization.

References

Mar 18, 2005·Journal of the American Chemical Society·Ke MinKrzysztof Matyjaszewski
Aug 10, 2006·Journal of the American Chemical Society·Ke MinKrzysztof Matyjaszewski
Aug 28, 2015·Chemical Reviews·Per B ZetterlundMuriel Lansalot
Mar 29, 2016·Macromolecules·Sarah L CanningSteven P Armes

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Citations

Oct 31, 2018·Macromolecular Rapid Communications·Thomas G RibelliKrzysztof Matyjaszewski
Jun 13, 2020·Macromolecular Rapid Communications·Yi Wang, Krzysztof Matyjaszewski
Apr 10, 2020·Materials·Karolina Surmacz, Paweł Chmielarz

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