Synthetic tannins structure by MALDI‐TOF mass spectroscopy
Copyright policy )Synthetic tannins structure by MALDI‐TOF mass spectroscopy
AbstractThe structure, polymeric nature, and oligomers distribution of six types of commercial synthetic tannins (syntans) were determined by MALDI‐TOF mass spectrometry. The syntans examined were: (i) polycondensation oligomers of sulfonated phenol and 4,4′‐dioxydiphenylsulfone with formaldehyde and sodium bisulfite; (ii) sodium salts of polycondensation oligomers of phenol and sulfonated phenol with formaldehyde and urea; (iii) sodium salts of polycondensation oligomers of sulfonated phenol with formaldehyde and urea; (iv) sodium and ammonium salts of polycondensation oligomers of sulfonated naphtalene with formaldehyde; and (v) a sulfonated phenolic novolak resin. The oligomers distribution indicated that the relative abundance of oligomers from trimer to higher degrees of polymerization varied from 70% to more than 90% according to the different syntans tested. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
- Centre Hospitalier Universitaire de Nancy France
- Stellenbosch University South Africa
Polymers, Syntans, Novolak resin, oligomer, Phenolic resins, MALDI-TOF mass spectroscopy, Phenols, Formaldehyde, Urea, Urea formaldehyde resins, MALDI, Sulfur compounds, Ammonium compounds, Polycondensation, Relative abundance, Mass spectrometry, structural property, MALDI-TOF mass spectrometry, Structure, Sodium salt, 540, 620, Higher-degree, condensation, Metabolism, Oligomers, polymerization, resin, Salts, Tannins, Mass spectrometers, Resins, Ammonium salt, Sodium bisulfite
Polymers, Syntans, Novolak resin, oligomer, Phenolic resins, MALDI-TOF mass spectroscopy, Phenols, Formaldehyde, Urea, Urea formaldehyde resins, MALDI, Sulfur compounds, Ammonium compounds, Polycondensation, Relative abundance, Mass spectrometry, structural property, MALDI-TOF mass spectrometry, Structure, Sodium salt, 540, 620, Higher-degree, condensation, Metabolism, Oligomers, polymerization, resin, Salts, Tannins, Mass spectrometers, Resins, Ammonium salt, Sodium bisulfite
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