Analysis of Fatty Alcohol Ethoxylates Regarding Chain Length and Endgroups by MALDI-TOF MS Using Collision-Induced Dissociation

被引：1

作者：

Mass, Valentina ^{[2
]}

Rode, Karsten ^{[2
]}

Rittig, Frank ^{[3
]}

Ostrowski, Thomas ^{[3
]}

Pasch, Harald ^{[1
]}

机构：

[1] Univ Stellenbosch, Dept Chem & Polymer Sci, ZA-7602 Matieland, South Africa

[2] German Inst Polymers, Deutsch Kunststoff Inst, D-64289 Darmstadt, Germany

[3] BASF AG, D-67056 Ludwigshafen, Germany

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2012年 / 213卷 / 07期

关键词：

collision-induced dissociation; fatty alcohol ethoxylates; MALDI-TOF mass spectrometry; oligomers; surfactants; ASSISTED-LASER-DESORPTION/IONIZATION; IONIZATION-MASS-SPECTROMETRY; TIME-OF-FLIGHT; LIQUID-CHROMATOGRAPHY; SYNTHETIC-POLYMERS; BLOCK-COPOLYMERS; CRITICAL RANGE; END-GROUP; POLY(OXYPROPYLENE); POLY(OXYETHYLENE);

D O I：

10.1002/macp.201100602

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

MALDI-TOF MS is used to analyze the chain lengths and endgroups of fatty alcohol ethoxylates based on the fragmentation behavior in collision-induced dissociation. MALDI-CID-TOF2 of the ethoxylates results in complex fragmentation patterns that mirror the fragmentation of the ethylene oxide oligomer chain and the fatty alocohol endgroups. Characteristic fragment patterns are obtained that facilitate the interpretation of the fragmentation behavior of the fatty alcohol ethoxylates. Linear and branched endgroups can be differentiated and specific fragments are identified that are characteristic for the cleavage between the polymer chain and the endgroup. These marker fragments are used to determine the oligomer chain length and the number of carbons per endgroup.

引用

页码：747 / 756

页数：10

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