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Polyurethanes derived from coal extract
Author(s) -
Gunderson Timothy James,
Holberg Stefan,
Bassham Seth Taylor,
Wang Xinyan,
Downey Michael Ryan,
Adams Jeramie J.,
Khambhati Devang P.,
Bell David A.,
Ackerman John Fitzgerald,
Johnson Patrick Alfred
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48776
Subject(s) - polyurethane , toluene diisocyanate , coal , solvent , dimethylformamide , coating , materials science , toluene , adhesive , polyol , yield (engineering) , chemical engineering , chemistry , polymer chemistry , organic chemistry , composite material , engineering , layer (electronics)
Subbituminous coal from the powder river basin was extracted with N , N ‐dimethylformamide at atmospheric pressure to yield a solid extract that provided phenolic and carboxylic acid groups. The coal extract was employed as polyol in polyurethane (PU) synthesis. A solvent‐free synthesis using 2,4‐toluene diisocyanate (TDI) resulted in a porous PU solid. Reaction with TDI in solution resulted in a soluble PU that could be applied as adhesive or coating. Coatings were also prepared from coal extract solutions and commercial, polymeric isocyanates, providing excellent adhesion to aluminum. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48776.