Microstructure characterization and mechanistic insight into polyether polyols and their associated polyurethanes.

Autor: Gies AP; Core R&D, The Dow Chemical Company, Lake Jackson, Texas, USA., Hercules DM; Deparment of Chemistry, Vanderbilt University, Nashville, Tennessee, USA., Raghuraman A; Polyurethanes R&D, The Dow Chemical Company, Lake Jackson, Texas, USA., Kosanovich AJ; Polyurethanes R&D, The Dow Chemical Company, Lake Jackson, Texas, USA., Baker MA; Polyurethanes R&D, The Dow Chemical Company, Lake Jackson, Texas, USA., Mukhopadhyay S; Core R&D, The Dow Chemical Company, Midland, Michigan, USA., Kobylianskii I; Core R&D, The Dow Chemical Company, Lake Jackson, Texas, USA., Paradkar M; Core R&D, The Dow Chemical Company, Lake Jackson, Texas, USA.
Jazyk: angličtina
Zdroj: Mass spectrometry reviews [Mass Spectrom Rev] 2023 Aug 03. Date of Electronic Publication: 2023 Aug 03.
DOI: 10.1002/mas.21862
Abstrakt: This article reviews the analytical tool chest used for characterizing alkoxylates and their associated copolymer mixtures. Specific emphasis will be placed upon the use of mass spectrometry-based techniques as rapid characterization tools for optimizing reaction processes in an industrial R&D setting. An initial tutorial will cover the use of matrix-assisted laser desorption/ionization-mass spectrometry and tandem mass spectrometry fragmentation for detailed component analysis (e.g., polyol and isocyanate) of a model polyurethane-based foam. Next, this critical feedback information will be used with the guidance of mass spectrometry to initiate the development of a new, more efficient, tris(pentafluorophenyl)borane (FAB) catalyst-based alkoxylation process for generating the next generation of glycerin-initiated poly(propylene oxide)-co-poly(ethylene oxide) copolymers. Examples will be provided for each step in the FAB-based optimization process that were required to generate the final product. Following this example, two-dimensional liquid chromatography, supercritical fluid chromatography, and ion mobility separations, along with their coupling to mass spectrometry, will be reviewed for their efficiency in characterizing and quantitating the components within these complex polyether polyol mixtures.
(© 2023 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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