DETERMINATION OF COMPOSITION OF POLY(ETHYLENE-CO-PROPYLENE) GLYCOLES AT MOLECULAR LEVEL BY MALDI MASS SPECTROMETRY FOLLOWING PRELIMINARY DERIVATIZATION

被引：5

作者：

Borisov, R. S. ^{[1
]}

Polovkov, N. Y. ^{[1
]}

Gorjainov, S. V. ^{[2
]}

Zaikin, V. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia

[2] Peoples Friendship Univ Russia, Moscow, Russia

来源：

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2012年 / 17卷 / 08期

关键词：

Composition; Derivatization; End-group analysis; MALDI mass spectrometry; Poly(ethylene-co-propylene) diols;

D O I：

10.1080/1023666X.2012.725269

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This article describes the use of derivatization as an efficient method for the determination of the nature of end groups in poly(ethylene-co-propylene) glycols. These data are helpful in calculating their composition at the molecular level with the aid of MALDI mass spectrometry. For derivatization, formylation is shown to be the most suitable. Knowledge of the nature of end groups allows an easy calculation of composition of the copolymers at the molecular level on the basis of MALDI mass spectra of underivatized and derivatized copolymers. It is underlined that derivatization is particularly useful in the investigation of minor components present in the samples.

引用

页码：608 / 615

页数：8

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