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Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization
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Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization

Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization

8,258 Views

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12:19 min

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November 29, 2018

DOI:

10.3791/58539-v

DOI:
10.3791/58539-v

•

12:19 min
November 29, 2018

•

1 Views
, , , , , , ,
1ICGM, Université de Montpellier, CNRS, ENSCM, 2Institut de Science des Matériaux de Mulhouse (IS2M UMR 7361 CNRS),Université de Haute-Alsace, 3Université de Strasbourg, 4Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629 ENSCBP),Université de Bordeaux

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We describe a protocol to photogenerate N-heterocyclic carbenes (NHCs) by UV irradiation of a 2-isopropylthioxanthone/imidazolium tetraphenylborate salt system. Methods to characterize the photoreleased NHC and elucidate the photochemical mechanism are proposed. The protocols for ring-opening metathesis photopolymerization in solution and miniemulsion illustrate the potential of this 2-component NHC photogenerating system.

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N-Heterocyclic CarbenesNHCPhotolatent NHCPhotoinduced Ring-Opening Metathesis PolymerizationImidazolium SaltsPhotochemistrySpectrophotometric TitrationPhenol RedNorborneneMiniemulsionRuthenium Precatalyst

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Pinaud, J., Placet, E., Lacroix-Desmazes, P., Trinh, T. K. H., Malval, J. P., Chemtob, A., Pichavant, L., Héroguez, V. Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization. J. Vis. Exp. (141), e58539, doi:10.3791/58539 (2018).

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