Quantitative determination of loadings and oxidation products of polystyrene-bound phosphines using 31p MAS NMR.
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.
Rentsch
Daniel
D
Swiss Federal Laboratories for Materials Testing and Research (EMPA), CH-8600 Dübendorf, Switzerland. daniel.rentsch@empa.ch
Hany
Roland
R
Barthélémy
Sophie
S
Steinauer
René
R
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
D010720:Phosphines; D010759:Phosphorus Isotopes; D011137:Polystyrenes