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Solvent‐independent molecular weight determination of polymers based on a truly universal calibration
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Voorter, Pieter‐Jan, McKay, Alasdair, Dai, Jinhuo, Paravagna, Olga, Cameron, Neil R. and Junkers, Tanja (2022) Solvent‐independent molecular weight determination of polymers based on a truly universal calibration. Angewandte Chemie International Edition, 61 (5). e202114536. doi:10.1002/ange.202114536 ISSN 1433-7851.
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Official URL: https://doi.org/10.1002/ange.202114536
Abstract
Diffusion-ordered NMR spectroscopy (DOSY) allows for accurate molecular weight calibration and determination that can be corrected for solvent influences. Polystyrene and poly(ethylene glycol) standards have been used to calibrate DOSY diffusion data for a variety of solvents, showing a high correlation of data when the bulk viscosity of the solvent is accounted for following the Stokes–Einstein equation. In this way, a type of universal calibration is introduced that allows for determinations of average molecular weight that are at least as accurate as those of traditional size-exclusion chromatography (SEC), if not better. Further, we demonstrate that DOSY calibrations can be used between laboratories, hence removing the need for individual calibration of setups as currently done.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
SWORD Depositor: | Library Publications Router | ||||||||
Journal or Publication Title: | Angewandte Chemie International Edition | ||||||||
Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | ||||||||
ISSN: | 1433-7851 | ||||||||
Official Date: | 26 January 2022 | ||||||||
Dates: |
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Volume: | 61 | ||||||||
Number: | 5 | ||||||||
Article Number: | e202114536 | ||||||||
DOI: | 10.1002/ange.202114536 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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