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

来源：

CANADIAN JOURNAL OF CHEMISTRY | 2017年 / 95卷 / 03期

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

页码：239 / 242

页数：4

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