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- W4313456746 abstract "Abstract Anionic polymerizations are of exceptional practical importance, but difficult to analyze due to the high reactivity of the growing polymer chains. Here, we demonstrate that electrospray‐ionization mass spectrometry (ESI‐MS) permits direct observation of the active carbanionic intermediates formed in the anionic ring‐opening polymerization of 1‐cyanocyclopropanecarboxylate in tetrahydrofuran. This includes the identification of a side product, as well as real‐time analysis of the polymerization reaction. From the mass spectra obtained, we can derive not only the mean molar mass and the polydispersity, but also the rate constants for the initiation and the individual propagation steps. The initiation proceeds significantly faster than the propagation steps. Accordingly, the examined reaction corresponds to a living polymerization, as we also confirmed by additional control experiments. Besides giving detailed insight into the reaction system probed here, we also expect the presented methodology to make possible the in‐situ analysis of further anionic polymerizations." @default.
- W4313456746 created "2023-01-06" @default.
- W4313456746 creator A5007386495 @default.
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- W4313456746 date "2023-02-01" @default.
- W4313456746 modified "2023-10-12" @default.
- W4313456746 title "Live Monitoring of Anionic Living Polymerizations by Electrospray‐Ionization Mass Spectrometry" @default.
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- W4313456746 doi "https://doi.org/10.1002/chem.202203762" @default.
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