Synthetic tannins structure by MALDI-TOF mass spectroscopy

Simple item page
dc.contributor.authorGiovando S.
dc.contributor.authorPizzi A.
dc.contributor.authorPasch H.
dc.contributor.authorRode K.
dc.date.accessioned2011-05-15T15:59:26Z
dc.date.available2011-05-15T15:59:26Z
dc.date.issued2009
dc.description.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) polyconden-sation oligomers of sulfonated phenol and 4,40-dioxydiphe-nylsulfone 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 naphta-lene 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.
dc.description.versionArticle
dc.identifier.citationJournal of Applied Polymer Science
dc.identifier.citation114
dc.identifier.citation2
dc.identifier.issn218995
dc.identifier.other10.1002/app.30667
dc.identifier.urihttp://hdl.handle.net/10019.1/11176
dc.subjectAmmonium salt
dc.subjectHigher-degree
dc.subjectMALDI
dc.subjectMALDI-TOF mass spectrometry
dc.subjectMALDI-TOF mass spectroscopy
dc.subjectNovolak resin
dc.subjectRelative abundance
dc.subjectSodium bisulfite
dc.subjectSodium salt
dc.subjectStructure
dc.subjectSyntans
dc.subjectTannins
dc.subjectAmmonium compounds
dc.subjectFormaldehyde
dc.subjectMass spectrometers
dc.subjectMass spectrometry
dc.subjectMetabolism
dc.subjectOligomers
dc.subjectPhenols
dc.subjectPolycondensation
dc.subjectPolymers
dc.subjectResins
dc.subjectSalts
dc.subjectSulfur compounds
dc.subjectUrea
dc.subjectUrea formaldehyde resins
dc.subjectPhenolic resins
dc.subjectcondensation
dc.subjectformaldehyde
dc.subjectoligomer
dc.subjectpolymerization
dc.subjectresin
dc.subjectstructural property
dc.titleSynthetic tannins structure by MALDI-TOF mass spectroscopy
dc.typeArticle
Files
Collections
Stellenbosch University - Scopus Publications