INVESTIGATION OF PHENOL-FORMALDEHYDE CONDENSATES BY FIELD DESORPTION MASS SPECTROMETRY.

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Abstract

Acid-catalyzed (novolac type) and base-catalyzed (resol type) condensation products of phenol with formaldehyde were characterized by field desorption mass spectrometry. Novolac resin features spectrum containing molecular ions of polynuclear phenols with methylene linkages between the aromatic nuclei. Resol-type resin produces a wise variety of ionic species of mono- and polynuclear methylolated phenols. Acetylation of resol makes the assignation of condensation products easier. Number average molecular weights obtained by field desorption mass spectrometry agree fairly well with the values calculated from **1H minus NMR spectra.

Original languageEnglish
Pages (from-to)223-227
Number of pages5
JournalJournal of Polymer Science, Part C: Polymer Letters
Volume24
Issue number5
DOIs
StatePublished - 1 Jan 1986

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