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Aqueous Dispersions of Ethylene Copolymers and Their Laponite Clay Nanocomposites from Free-Radical Dispersion Polymerization

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2019

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Luttikhedde, Hendrik

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https://doi.org/10.1021/acs.macromol.9b00305
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Macromolecules. 2019, 52(11), pp. 4270-4277. ISSN 0024-9297. eISSN 1520-5835. Available under: doi: 10.1021/acs.macromol.9b00305

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Aqueous dispersions of ethylene copolymers with polar comonomers are of practical interest, e.g., as additives for paints or water-based adhesives. We report insights on the free-radical heterophase copolymerization of ethylene with vinyl acetate, acrylates, methacrylates, acrylamides, and ionic vinyl or (meth-)acrylate comonomers. Copolymers with polar comonomer contents of 0.1–10 mol % were obtained via a surfactant-free dispersion copolymerization at relatively mild conditions (250 atm, 85 °C). This allows for tuning of the low-density polyethylene particle surface properties, as demonstrated for polymer nanocomposite particles with Laponite clay in a Pickering-stabilized dispersion polymerization approach. Mechanistic insights on particle formation and stabilization are discussed.

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ISO 690MORGEN, Tobias O., Hendrik LUTTIKHEDDE, Stefan MECKING, 2019. Aqueous Dispersions of Ethylene Copolymers and Their Laponite Clay Nanocomposites from Free-Radical Dispersion Polymerization. In: Macromolecules. 2019, 52(11), pp. 4270-4277. ISSN 0024-9297. eISSN 1520-5835. Available under: doi: 10.1021/acs.macromol.9b00305
BibTex
@article{Morgen2019-06-11Aqueo-46238,
  year={2019},
  doi={10.1021/acs.macromol.9b00305},
  title={Aqueous Dispersions of Ethylene Copolymers and Their Laponite Clay Nanocomposites from Free-Radical Dispersion Polymerization},
  number={11},
  volume={52},
  issn={0024-9297},
  journal={Macromolecules},
  pages={4270--4277},
  author={Morgen, Tobias O. and Luttikhedde, Hendrik and Mecking, Stefan}
}
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