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Copolymerization of Mesoporous Styrene-Bridged Organosilica Nanoparticles with Functional Monomers for the Stimuli-Responsive Remediation of Water

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2020

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Published

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ChemSusChem. Wiley. 2020, 13(18), S. 5100-5111. ISSN 1864-5631. eISSN 1864-564X. Verfügbar unter: doi: 10.1002/cssc.202001264

Zusammenfassung

For every mass product, there are problems associated with the resulting waste. Residues of hormones in urine cannot be removed sufficiently from wastewater, and this has undesired consequences. An ideal adsorbent would take up the impurity, enable a simple separation and recyclability. Polymer colloids with high affinity towards the drug, accessible porosity, high surface area and stimuli-responsive properties would be candidates, but such a complex system does not exist. Here, porous vinyl-functionalized organosilica nanoparticles prepared from a styrene bridged sol-gel precursor act as monomers. Initiation of the polymerization at the pore-walls and addition of functional monomers result in a special copolymer, which is covalently linked to the surface and covers it. An orthogonal modification of external surface was done by click attachment of a thermoresponsive polymer. The final core-shell system is able to remove quantitatively hydrophobic molecules such as the hormone progesterone from water. A change of temperature closes the pores and induces the aggregation of the particles. After separation one can reopen the particles and recycle them.

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540 Chemie

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ISO 690KOLLOFRATH, Dennis, Marcel GEPPERT, Sebastian POLARZ, 2020. Copolymerization of Mesoporous Styrene-Bridged Organosilica Nanoparticles with Functional Monomers for the Stimuli-Responsive Remediation of Water. In: ChemSusChem. Wiley. 2020, 13(18), S. 5100-5111. ISSN 1864-5631. eISSN 1864-564X. Verfügbar unter: doi: 10.1002/cssc.202001264
BibTex
@article{Kollofrath2020-09-18Copol-50323,
  year={2020},
  doi={10.1002/cssc.202001264},
  title={Copolymerization of Mesoporous Styrene-Bridged Organosilica Nanoparticles with Functional Monomers for the Stimuli-Responsive Remediation of Water},
  number={18},
  volume={13},
  issn={1864-5631},
  journal={ChemSusChem},
  pages={5100--5111},
  author={Kollofrath, Dennis and Geppert, Marcel and Polarz, Sebastian}
}
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