Phenolic resins Part 6. Identifications of volatile organic molecules during thermal treatment of neat resols and resol filled with glass fibers

The physicochemical characterization of resols before and after cross-linki ng in the presence and absence of fiberglass was carried out using spectros copic and chromatographic techniques. Experiments involving gas chromatographic thermodesorption coupled with mas s spectrometry (GC-MS) led to the identification of the different volatile organic compounds present during the heat treatment of neat resol and resol filled with glass fibers. The results show that the knowledge of initial resol structures are very im portant data for kinetically following the departure of volatile compounds during resol manufacture. (C) 2000 Elsevier Science Ltd. All rights reserve d.