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Determination of the formaldehyde-to-phenol molar ratios of resol resins by infrared spectroscopy and multivariate analysis

✍ Scribed by Hilkka Holopainen; Leila Alvila; Tuula T. Pakkanen; Jouni Rainio


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
61 KB
Volume
89
Category
Article
ISSN
0021-8995

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The experimental time of 13 C-NMR quantitative analysis of phenol-formaldehyde resins was reduced so that quantitativeness was maintained. The quantitative spectra of 14 model resins were obtained using a gated decoupling technique suppressing the NOE. The paramagnetic additive, Cr(acac) 3 , was use