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  Hybrid sol–gel double metal cyanide catalysts for the copolymerisation of styrene oxide and CO2

Dienes, Y., Leitner, W., Müller, M. G. J., Offermans, W. K., Reier, T., Reinholdt, A., et al. (2012). Hybrid sol–gel double metal cyanide catalysts for the copolymerisation of styrene oxide and CO2. Green Chemistry, 14(4), 1168-1177. doi:10.1039/c2gc16485j.

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c2gc16485j.pdf (Supplementary material), 134KB
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c2gc16485j.pdf
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2012
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The Royal Society of Chemistry
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 Creators:
Dienes, Yvonne1, Author
Leitner, Walter2, 3, Author           
Müller, Merlin G. J.4, Author
Offermans, Willem K.1, Author
Reier, Tobias1, Author
Reinholdt, Alexander4, Author
Weirich, Thomas E.3, 4, Author
Müller, Thomas E.1, Author
Affiliations:
1CAT Catalytic Center, ITMC, RWTH Aachen University, Worringerweg 1, D-52056 Aachen, Germany, ou_persistent22              
2Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Woringerweg 1, D-52074 Aachen, Germany, ou_persistent22              
3Service Department Leitner (Technical Labs), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445626              
4Gemeinschaftslabor für Elektronenmikroskopie (GFE), RWTH Aachen University, Ahornstraße 55, D-52074 Aachen, Germany, ou_persistent22              

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 Abstract: Hybrid sol–gel catalysts of zinc hexacyanocobaltate and SiO2 were prepared by co-precipitation of the double metal cyanide with silica. Hybrid catalysts prepared at moderately acidic conditions showed the best performance with respect to activity, selectivity and stability. The hybrid sol–gel materials displayed high catalytic activity for the copolymerisation of styrene oxide and carbon dioxide (up to 650 molSO (molZn h)−1) and high productivity (575 gPolymer gCatalyst −1). They also displayed good selectivity to the polymeric product (80–87%), while only little cyclic styrene carbonate was formed as side product. A detailed electron microscopy study of the hybrid sol–gel materials showed that the active phase consisted of thin platelets containing the metals in a molar ratio nZn/nCo = 2.1, whereby the double metal cyanide was closely associated with silica.

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Language(s): eng - English
 Dates: 2011-11-202012-01-302012-03-062012-04-01
 Publication Status: Issued
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/c2gc16485j
 Degree: -

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Title: Green Chemistry
  Other : Green Chem.
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: 10 Volume / Issue: 14 (4) Sequence Number: - Start / End Page: 1168 - 1177 Identifier: ISSN: 1463-9262
CoNE: https://pure.mpg.de/cone/journals/resource/954925625301