1H- and13C-NMR Studies on Phenol-Formaldehyde Prepolymers for Tannin-Based Adhesives
- 1 June 1989
- journal article
- research article
- Published by Taylor & Francis in Journal of Wood Chemistry and Technology
- Vol. 9 (2) , 201-217
- https://doi.org/10.1080/02773818908050294
Abstract
The 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 prepolymens prepared under different reaction conditions. Quantitative 13C-NMR techniques provided a detailed analysis of the structure of a phenol-formaldehyde prepolymer.Keywords
This publication has 9 references indexed in Scilit:
- Reactions of Tannin Model Compounds with MethylolphenolsPublished by American Chemical Society (ACS) ,1989
- Tannin-Based Adhesives for Finger-Jointing WoodPublished by American Chemical Society (ACS) ,1989
- Quantitative 13C n.m.r. characterization of aqueous formaldehyde resins: 2. Resorcinol-formaldehyde resinsPolymer, 1986
- Quantitative 13C n.m.r. characterization of aqueous formaldehyde resins: 1. Phenol-formaldehyde resinsPolymer, 1986
- Quantitative13C NMR Characterization of Lignin 1. A Methodology for High PrecisionHolzforschung, 1985
- Solid-state carbon-13 NMR study of resol-type phenol-formaldehyde resinsMacromolecules, 1984
- Carbon-13 NMR studies of solid phenolic resins using cross polarization and magic-angle spinningMacromolecules, 1983
- Carbon-13 Nuclear Magnetic Resonance of Phenolic Resins. Positional Isomers of Bis(hydroxybenzyl)phenols and Bis(hydroxyphenyl)methanesMacromolecules, 1979
- Contributions to the heat of mixing in polymer–solvent systemsJournal of Polymer Science Part B: Polymer Letters, 1965