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U.S. Department of Energy
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Characterization and utilization in phenolic resins of lignin from wood saccharification by mineral acids. Annual report, October 1, 1984-September 30, 1985

Technical Report ·
OSTI ID:5992883
This research is to explore conditions under which the lignin-rich residue from TVA's two stage hardwood based wood saccharification pilot plant can be used as a prepolymer for phenol-formaldehyde resin products and other thermosetting plastics. Six specific tasks studied were to isolate a uniform polymer fraction from the lignin-rich pilot plant residue; to characterize the chemical and molecular structure of the useful lignin fraction; to test the reactivity of this fraction with phenol, with formaldehyde and phenol in sequence, and with propylene oxide, and to analyze the reaction products; to synthesize phenolic resins with substitution levels in excess of 50% of phenol, and to evaluate these resins by thermal analysis; to test selected resins by shear block testing and to prepare polyurethane thermosets by crosslinking with diisocyanates; and to compare the performance of the phenolic resins and polyurethanes with those obtained with other lignins. 4 figs., 3 tabs.
Research Organization:
Virginia Polytechnic Inst. and State Univ., Blacksburg (USA). Dept. of Forest Products
DOE Contract Number:
AI01-83CE30792
OSTI ID:
5992883
Report Number(s):
DOE/CE/30792-T21; ON: DE86008065
Country of Publication:
United States
Language:
English