Electrospray ionization tandem mass spectrometry of the star-shaped propoxylated diethylenetriamine polyols

Ghazaleh Shemirani, Ákos Kuki, Lajos Nagy, Tibor Nagy, M. Zsuga, S. Kéki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The collision-induced dissociation of the protonated five-arm star propoxylated diethylenetriamine polyols was studied under electrospray conditions. Two product ion series were detected because of the cleavage of the C'N bonds in the initiator moiety. No backbone fragmentation of the polyether chains was observed, which allowed to explore the initiation and side-chain propagation process of the oligomers. On the basis of MS/MS spectra, it is probable that the rate of the initiation is larger than that of the chain propagation. The propylene oxide repeat units attach to the five arms with approximately the same probability. Furthermore, it was found that the collision energy necessary to obtain 50% fragmentation (CE50) was linearly dependent on the molecular weight of the polyols.

Original languageEnglish
Pages (from-to)914-917
Number of pages4
JournalJournal of Mass Spectrometry
Volume50
Issue number7
DOIs
Publication statusPublished - Jul 1 2015

Fingerprint

Electrospray ionization
Electrospray Ionization Mass Spectrometry
Polyols
Tandem Mass Spectrometry
Stars
Mass spectrometry
mass spectroscopy
stars
ionization
Polyethers
fragmentation
Oligomers
Propylene
propylene oxide
collisions
propagation
Molecular Weight
Molecular weight
initiators
Ions

Keywords

  • diethylenetriamine
  • polypropylene glycol
  • tandem mass spectrometry

ASJC Scopus subject areas

  • Spectroscopy

Cite this

Electrospray ionization tandem mass spectrometry of the star-shaped propoxylated diethylenetriamine polyols. / Shemirani, Ghazaleh; Kuki, Ákos; Nagy, Lajos; Nagy, Tibor; Zsuga, M.; Kéki, S.

In: Journal of Mass Spectrometry, Vol. 50, No. 7, 01.07.2015, p. 914-917.

Research output: Contribution to journalArticle

Shemirani, Ghazaleh ; Kuki, Ákos ; Nagy, Lajos ; Nagy, Tibor ; Zsuga, M. ; Kéki, S. / Electrospray ionization tandem mass spectrometry of the star-shaped propoxylated diethylenetriamine polyols. In: Journal of Mass Spectrometry. 2015 ; Vol. 50, No. 7. pp. 914-917.
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