Universal mass spectrometric analysis of poly(ionic liquid)s

Chemical Science
Martina M CecchiniChristopher Barner-Kowollik

Abstract

We introduce a universal high resolution mass spectrometric method for the analysis of poly(ionic liquid)s (PILs), which belong to the most challenging polyelectrolytes from an analytical perspective, by fusing high resolution collision-induced dissociation (CID)-Orbitrap mass spectrometry (MS) with supercharging agents as well as quadrupole time-of-flight (QToF) MS. The study includes a wide array of hydrophilic halide-containing PILs, which were analyzed in negative mode. The influence of the core structures (based on imidazolium, triazolium, ammonium, phosphonium and pyridinium moieties), and variable styrene-, acrylate- and vinyl-type IL polymers on the ionization behavior is mapped in detail. Variable end group functionalities were introduced via functional chain transfer agents (CTA) in reversible addition-fragmentation chain transfer (RAFT) polymerization to study their behavior during the MS analysis. Furthermore, the demanding class of vinylimidazolium halide IL polymers was investigated. The current contribution thus introduces a new analytical technology platform for an entire polymer class.

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Citations

Jan 24, 2019·Macromolecular Rapid Communications·Xiangwei ZhuQiang Zhao
Oct 19, 2016·Macromolecular Rapid Communications·Jan SteinkoenigChristopher Barner-Kowollik
Dec 16, 2016·Journal of the American Chemical Society·Jan SteinkoenigChristopher Barner-Kowollik

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Methods Mentioned

BETA
nuclear
size exclusion chromatography

Software Mentioned

MassLynx

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