AI Article Synopsis
- This study presents the first mass spectrometric analysis of poly(ionic liquid)s (PILs) with weakly coordinating anions via a quick and efficient postmodification technique using poly(vinylbenzylpyridinium chloride) as a model.
- The analysis employs in-source collision induced dissociation-Orbitrap mass spectrometry to accurately determine the structure of ion-exchanged p([VBPy]Cl) with various AgX salts.
- The research demonstrates that the anion exchange process is complete and quick, with no leftover chlorinated PIL detectable, and also investigates how weakly coordinating anions affect the ionization of PILs.
Article Abstract
We report the first mass spectrometric analysis of poly(ionic liquid)s (PILs) containing weakly coordinating anions introduced by a fast, simple, and quantitative postmodification method on the example of the hydrophilic, well-defined poly(vinylbenzylpyridinium chloride) p([VBPy]Cl) species, analyzed with an in-source collision induced dissociation-Orbitrap mass spectrometry (MS) protocol. Using the MS approach allows for the precise structural elucidation of ion-exchanged p([VBPy]Cl) utilizing AgX (X = NO , CF CO , BF ) salts. The anion exchange is shown to be quantitative - without observing residual chlorinated PIL - on rapid time scales, using only filtration as a standard procedure during sample preparation. In addition, the influence of weakly coordinating anions on the ionization behavior of PILs is studied in detail.
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| http://dx.doi.org/10.1002/marc.201600376 | DOI Listing |
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