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1H and 13C-NMR studies on phenol-formaldehyde prepolymers for tannin-based adhesivesAuthor(s): Gerald W. McGraw; Lawerence L. Lanucci; Seiji Ohara; Richard W. Hemingway
Source: Journal of Wood Chemical & Technology 9(2):201-217
Publication Series: Miscellaneous Publication
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DescriptionThe number average structure and the molecular weight distribution of phenol-formaldehyde prepolymers for use in synthesis of tannin-based adhesive resins were determined with 1H and 13C-NMR spectroscopy and gel permeation chromatography of acetylated resins. These methods were used to determine differences in phenol-formaldehyde prepolymers prepared under different reaction conditions. Quantitative 13C-NMR techniques provided a detailed analysis of the structure of a phenol-formaldehyde prepolymer.
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CitationMcGraw, Gerald W.; Lanucci, Lawerence L.; Ohara, Seiji; Hemingway, Richard W. 1989. 1H and 13C-NMR studies on phenol-formaldehyde prepolymers for tannin-based adhesives. Journal of Wood Chemical & Technology 9(2):201-217
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