2008
DOI: 10.1016/j.polymer.2008.06.050
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Online monitoring of synthesis and curing of phenol–formaldehyde resol resins by Raman spectroscopy

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Cited by 29 publications
(15 citation statements)
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“…3). The absorption peak at 3020 to 3671 cm -1 can be assigned to the OH stretching modes (Hernandez-Padron et al 2003;Monni et al 2008). The characteristic absorption peaks in this region were sharp, demonstrating the presence of numerous OH groups in the BPF-30% resin.…”
Section: Ftir Analysismentioning
confidence: 93%
“…3). The absorption peak at 3020 to 3671 cm -1 can be assigned to the OH stretching modes (Hernandez-Padron et al 2003;Monni et al 2008). The characteristic absorption peaks in this region were sharp, demonstrating the presence of numerous OH groups in the BPF-30% resin.…”
Section: Ftir Analysismentioning
confidence: 93%
“…Further studies on aqueous formaldehyde solutions in the absence of methanol [14,15] suggested assignments for observed Raman spectra over a wide range of concentrations where numerous oligoglycol species were present in solutions. Raman spectroscopic studies of frozen aqueous formaldehyde solutions were also reported [8] as well as studies of phenolformaldehyde solutions [16]. However, formaldehyde solutions containing methoxylated species have not been investigated previously using Raman spectroscopy.…”
Section: Introductionmentioning
confidence: 98%
“…They generally require special training, samples collection and involve solvent for sampling preparation. Up to now, only a few works with different analytical techniques such as mid-infrared (MIR) spectroscopy [22,23], near infrared (NIR) spectroscopy [24][25][26][27], Raman spectroscopy [28], ultrasonication-assisted spray ionization mass spectroscopy [29], fluorescence [30] or UV spectroscopy [31] are able to on-line monitor organic reactions (mostly different from transesterification reaction). With these methods, process state can be obtained from whole sample finger-printing.…”
Section: Introductionmentioning
confidence: 99%