Application of High-Resolution MALDI-TOFMS with a Spiral Ion Trajectory for the Structural Characterization of Free Radical Polymerized Methacrylate Ester Copolymers

Mass Spectrometry
Hiroaki SatoKanae Teramoto

Abstract

The structural characterization of copolymers by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) remains a challenging task, since their random comonomer distribution creates very complicated mass spectra. In this study, a high-resolution TOF mass spectrometer with a spiral ion trajectory was applied to the structural and compositional characterization of free radical copolymerized poly(methyl methacrylate-co-tert-butyl methacrylate), poly(MMA-co-tBMA)s in ethyl lactate acting as a chain transfer agent. Virtually complete peak assignments of the isobaric components within the poly(MMA-co-tBMA)s served to identify the end-group combinations and copolymer compositions of individual copolymer components, allowing the distributions of comonomer compositions and six types of end-group combinations to be evaluated.

References

Oct 10, 2002·Mass Spectrometry Reviews·Maurizio S Montaudo
Nov 19, 2003·European Journal of Mass Spectrometry·Todd H MizeI Jonathan Amster
Oct 7, 2004·Macromolecular Bioscience·Elisabetta RanucciFederica Chiellini
Oct 26, 2005·Journal of the American Society for Mass Spectrometry·Takaya SatohYoshihiro Kammei
May 22, 2007·Journal of the American Society for Mass Spectrometry·Takaya SatohJun Tamura

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Citations

May 23, 2014·Journal of the American Society for Mass Spectrometry·Hiroaki SatoTakafumi Sato
Feb 3, 2015·Rapid Communications in Mass Spectrometry : RCM·Tomomi Iura, Hajime Ohtani

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