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Updated: Jun 6, 2026

Characteristics of Precipitation-formed Polyethylene Glycol Microgels Are Controlled by Molecular Weight of Reactants
Published on: December 23, 2013
Characterization of polyoxyethylenes according to the number of hydroxy end groups by hydrophilic interaction
Shazia Abrar1, Bernd Trathnigg
1Institute of Chemistry, Karl-Franzens-University, Graz, Austria.
Abstract:
Polyoxyethylenes with different functionality and architecture can be separated according to the number of terminal hydroxy groups on polar stationary phases in acetone water mobile phases containing 90-97% acetone. The best results were obtained on a HILIC column. Typical samples, which can be analyzed by this technique, are polyethylene glycols, their mono- and dialkyl ethers, macromonomers, the fatty esters of PEG, and ethoxylated glycerol.
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