Mass spectral characterization of oligomeric polysulfides by electrospray ionization combined with collision-induced decomposition

被引：16

作者：

Mahon, A ^{[1
]}

Kemp, TJ ^{[1
]}

Buzy, A ^{[1
]}

Jennings, KR ^{[1
]}

机构：

[1] UNIV WARWICK,DEPT CHEM,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND

来源：

POLYMER | 1996年 / 37卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

polysulfide; electrospray; mass spectrometry;

D O I：

10.1016/0032-3861(96)82927-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polysulfide oligomers H(SC2H4OCH2OC2H4S)(n)H with n=1-24 can be characterized by electrospray ionization mass spectrometry. Samples prepared by the conventional method are shown to contain up to eight series of oligomers differing in structure by one of a small group of variants in one (or sometimes two) of the repeat units, e.g. with one less S atom or an additional CH2O group. The composition of individual ions can be confirmed by collision-induced decomposition of cationized polysulfides, which yields unambiguous spectra of the fragmented ions.

引用

页码：531 / 535

页数：5

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