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Fast atom bombardment mass spectrometry for the determination of the molecular weight distribution of poly(ethylene glycols) and their derivatives

✍ Scribed by Roberta Seraglia; Pietro Traldi; Raniero Mendichi; Luciana Sartore; Oddone Schiavon; Francesco M. Veronese

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 426 KB
Volume: 262
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(92)80065-f

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✦ Synopsis

A fast atom bombardment mass spectrometrlc method for the characterlzatlon of polfiethylene glycols) (PEGS) and monomethoxy(polyethylene glycols) (MMPEGs) and theu denvatlves IS described This method, m comparison with the classIcal rheologxal measurements, offers the advantage of gwmg the abundance of the smgle ohgomers present m the nuxture In addltlon, the method allows the detectlon of even small amounts of PEG m MMPEG mtiures m addition to unreacted ohgomer m m&urea produced by reaction of PEG or MMPEG with reagents such as p-mtrophenyl chloroformate Keywords Mass spectrometry, Molecular weight dlstnbutlon, Poly(ethylene glycols)

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