Mass spectrometric characterization of oligomeric phosphaalkenes

被引:3
|
作者
Gillon, Bronwyn H. [1 ]
Gates, Derek P. [1 ]
Henderson, Matthew A. [2 ]
Janusson, Eric [2 ]
McIndoe, J. Scott [2 ]
机构
[1] Univ British Columbia, Dept Chem, 2036 Main Mall, Vancouver, BC V6T IZ1, Canada
[2] Univ Victoria, Dept Chem, POB 3065, Victoria, BC V8W 3V6, Canada
基金
加拿大自然科学与工程研究理事会; 加拿大创新基金会;
关键词
mass spectrometry; phosphorus; polymer; electrospray ionization; oligomers; LIVING ANIONIC-POLYMERIZATION; ADDITION POLYMERIZATION; AMBIENT-TEMPERATURE; PHOSPHINE POLYMERS; STYRENE; ROUTE; BLOCK; COPOLYMERIZATION; CHEMISTRY; SCOPE;
D O I
10.1139/cjc-2016-0206
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Oligomeric phosphaalkenes 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: M-n 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( PMesCPh(2))(n)H from n = 4-20, maximizing at similar to n = 10.
引用
收藏
页码:239 / 242
页数:4
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