Fast atom bombardment mass spectrometry for the determination of the molecular weight distribution of poly(ethylene glycols) and their derivatives
| Autor: | Pietro Traldi, Francesco M. Veronese, Raniero Mendichi, Luciana Sartore, Oddone Schiavon, Roberta Seraglia |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Mass spectrometry
technology industry and agriculture Molecular weight distribution Poly(ethylene glycols) Chloroformate Polyethylene Fast atom bombardment Biochemistry Oligomer Analytical Chemistry chemistry.chemical_compound chemistry Polymer chemistry PEG ratio Environmental Chemistry Molar mass distribution Ethylene glycol Spectroscopy |
| Zdroj: | Analytica Chimica Acta. 262:277-283 |
| ISSN: | 0003-2670 |
| DOI: | 10.1016/0003-2670(92)80065-f |
| Popis: | A fast atom bombardment mass spectrometric method for the characterization of poly(ethylene glycols) (PEGs) and monomethoxy(polyethylene glycols) (MMPEGs) and their derivatives is described. This method, in comparison with the classical rheological measurements, offers the advantage of giving the abundance of the single oligomers present in the mixture. In addition, the method allows the detection of even samll amounts of PEG in MMPEG mixtures in addition to unreacted oligomer in mixtures produced by reaction of PEG or MMPEG with reagents such as p-nitrophenyl chloroformate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|