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.