Mass spectrometric characterization of oligomeric phosphaalkenes
Date
2016
Authors
Gillon, Bronwyn H.
Gates, Derek P.
Henderson, Matthew A.
Janusson, Eric
McIndoe, J. Scott
Journal Title
Journal ISSN
Volume Title
Publisher
Canadian Journal of Chemistry
Abstract
Oligomeric phosphalkenes are readily characterized using electrospray ionization mass spectrometry (ESI-MS). The high affinity of phosphines for silver ions permits the detection of the unadulterated polymer as [M + xAg]x+ ions (x = 2-3). When the oligomers are oxidized using H2O2, the resulting phosphine oxide polymer may be treated with sodium ions to produce [M + xNa]x+ ions (x = 2-3). Both methods predict a similar distribution of oligomers: Mn values of 3450±100 Da and a PDI of 1.09±0.01 cover both analyses. This distribution represents oligomers of the general formula Me(PMesCPh2)nH from n = 4-20 and maximizing at ~n = 10.
Description
Keywords
mass spectrometry, phosphorus, polymer, electrospray ionization, oligomers
Citation
Gillon, B. H., Gates, D. P., Henderson, M. A., Janusson, E., & McIndoe, J. S. (2017). Mass spectrometric characterization of oligomeric phosphaalkenes. Canadian Journal of Chemistry, 95(3), 239-242.