Detailed structural elucidation of polyesters and acrylates using Fourier transform mass spectrometry.

Analytical and Bioanalytical Chemistry
William J Simonsick, Violeta I Petkovska

Abstract

The detailed structural characterization of complex polymer architectures, like copolymers and polymer mixtures, by mass spectrometry presents a challenge. Even though soft ionization analyses revolutionized the characterization of large molecules and provided a means for determining the polymer's molecular weight distribution, polydispersity, and end groups, full microstructure elucidation and monomer sequencing by soft ionization alone is not possible. The combination of high-resolution Fourier transform mass spectrometry (FTMS) and tandem mass spectrometry (MS(n)) provides a powerful analytical tool for addressing these challenges. This tool was used in our work to separate and identify the products of polymerization between 12-hydroxystearic acid (HSA) and stearic acid (SA), to provide precise information about the exact location of caprolactones on the Tris(2-hydroxyethyl)isocyanurate (THEIC) molecule, and to sequence a glycidyl methacrylate/methyl methacrylate (GMA/MMA) copolymer. The results highlight the value of ultrahigh resolution and tandem mass spectrometry for fine structural characterization and sequencing of polymers.

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Citations

Sep 30, 2009·Journal of the American Society for Mass Spectrometry·Malgorzata A Kaczorowska, Helen J Cooper
Jan 2, 2010·Journal of the American Society for Mass Spectrometry·Sasa M MiladinovićCharles L Wilkins
Aug 14, 2009·Journal of Mass Spectrometry : JMS·Anna C CreceliusUlrich S Schubert
Jul 14, 2010·Mass Spectrometry Reviews·Chrys WesdemiotisBryan C Katzenmeyer
May 25, 2010·Analytical Chemistry·Steffen M Weidner, Sarah Trimpin

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Methods Mentioned

BETA
NMR

Software Mentioned

SORI
QEA
MS
CID

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