title: Quantitative determination of loadings and oxidation products of polystyrene-bound phosphines using 31p MAS NMR.
abstract: The use of (31)P magic angle spinning (MAS) NMR for the quantitative determination of resin loadings and the building up of oxidation products was investigated. Loadings of polystyrene-bound phosphines were evaluated via addition of triphenyl phosphate as reference compound. Results for a series of phosphines are consistent with those obtained from well-established analytical methods. The compounds were also investigated with (13)C MAS NMR, and the individual oxidation stabilities were monitored under oxygen atmosphere.
authors.affiliation: Swiss Federal Laboratories for Materials Testing and Research (EMPA), CH-8600 Dübendorf, Switzerland. daniel.rentsch@empa.ch
authors.forename: Daniel
authors.initials: D
authors.lastname: Rentsch
authors.forename: Roland
authors.initials: R
authors.lastname: Hany
authors.forename: Sophie
authors.initials: S
authors.lastname: Barthélémy
authors.forename: René
authors.initials: R
authors.lastname: Steinauer
mesh_terms: D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D010084:Oxidation-Reduction; D010720:Phosphines / Q000032:analysis* / Q000737:chemistry* / Q000378:metabolism; D010759:Phosphorus Isotopes; D011137:Polystyrenes / Q000032:analysis* / Q000737:chemistry* / Q000378:metabolism
chemical_list: D010720:Phosphines; D010759:Phosphorus Isotopes; D011137:Polystyrenes