AbstractThe content of methoxy groups of methylated melamine‐formaldehyde resins was determined by infrared spectroscopy. The correlation between the area ratio (S) of 815 cm−1band to 913 cm−1band, which are the characteristic absorption bands of triazine and methoxy residue, respectively, and methoxy groups values (OMe) determined by gas liquid chromatography analysis was expressed as S = 1.08 × OMe + 0.24. The correlation coefficient was found to be
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