Different Nitroxide-Capped Polystyrenes and their Behavior During an Analysis via MALDI-TOF Mass Spectrometry

被引：8

作者：

Dempwolf, Wibke ^{[1
]}

Flakus, Silke ^{[1
]}

Schmidt-Naake, Gudrun ^{[1
]}

机构：

[1] Tech Univ Clausthal, Inst Tech Chem, D-38678 Clausthal Zellerfeld, Germany

来源：

MACROMOLECULAR SYMPOSIA | 2008年 / 275卷

关键词：

matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS); nitroxide; polystyrene; radical polymerization;

D O I：

10.1002/masy.200950119

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Different nitroxide-terminated polystyrenes are characterized using matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). Careful MS analysis reveals that in contrast to TEMPO-capped chains which can be analyzed without fragmentation, a fragmentation of the N-oxyle group occurs in case of TIPNO and BIPNO. A fragmentation resulting in the loss of a t-butyl-group is proposed as consequence of the treatment during the measurement.

引用

页码：166 / 172

页数：7

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