Analysis of macrocyclic polystyrenes .2. Mass spectrometric investigations

被引：41

作者：

Pasch, H ^{[1
]}

Deffieux, A ^{[1
]}

Ghahary, R ^{[1
]}

Schapacher, M ^{[1
]}

RiqueLurbet, L ^{[1
]}

机构：

[1] UNIV BORDEAUX 1,ECOLE NATL SUPER CHIM & PHYS BORDEAUX,LAB CHIM POLYMERES ORGAN,F-33405 TALENCE,FRANCE

来源：

MACROMOLECULES | 1997年 / 30卷 / 01期

关键词：

D O I：

10.1021/ma960916j

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry is shown to be a new and powerful technique for the analysis of macrocyclic polystyrenes and their linear precursors. The oligomer distributions for samples of different molar masses are obtained and the end groups of the linear precursors are identified. The chemical structure of the cyclization products is determined and it is shown that in the MALDI process the labile benzylic chlorine substituent at the macrocycle is abstracted, to yield a double bond. It is shown that MALDI mass spectrometry alone does not provide full information on the composition of the reaction products. The chemical structure of the macrocycles and the linear byproducts can be determined by chromatographic separation and subsequent MALDI analysis.

引用

页码：98 / 104

页数：7

共 21 条

[1] MASS-SPECTROMETRY OF SYNTHETIC-POLYMERS BY UV MATRIX-ASSISTED LASER DESORPTION IONIZATION [J].