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Aqueous Dispersions of Multiphase Polyolefin Particles

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2016

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Godin, Alexandra

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https://doi.org/10.1021/acs.macromol.6b01818
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Macromolecules. 2016, 49(21), pp. 8296-8305. ISSN 0024-9297. eISSN 1520-5835. Available under: doi: 10.1021/acs.macromol.6b01818

Zusammenfassung

Multiphase polyolefin particles consisting of polyethylenes with different microstructures were synthesized using [κ2-(N,O)Ni(II)Me(L)] catalyst precursors via a two-step dispersion-based approach. First, crystalline seed particles were directly generated by aqueous polymerization of ethylene using a water-soluble catalyst precursor or via miniemulsion polymerization. The second softer dispersed phase, consisting of a low crystalline highly branched low molecular weight polyethylene or ethylene–norbornene copolymer, was generated in the presence of this seed via aqueous polymerization using a second water-soluble catalyst precursor or via miniemulsion polymerization. Particles with different nanoscale morphologies, namely core–shell, “dumbbell” or “sea urchin”-like, were formed as observed by TEM and AFM. The obtained nanocomposite dispersions formed continuous semicrystalline films.

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ISO 690GODIN, Alexandra, Stefan MECKING, 2016. Aqueous Dispersions of Multiphase Polyolefin Particles. In: Macromolecules. 2016, 49(21), pp. 8296-8305. ISSN 0024-9297. eISSN 1520-5835. Available under: doi: 10.1021/acs.macromol.6b01818
BibTex
@article{Godin2016-11-08Aqueo-37328,
  year={2016},
  doi={10.1021/acs.macromol.6b01818},
  title={Aqueous Dispersions of Multiphase Polyolefin Particles},
  number={21},
  volume={49},
  issn={0024-9297},
  journal={Macromolecules},
  pages={8296--8305},
  author={Godin, Alexandra and Mecking, Stefan}
}
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