Polyurethanes derived from coal extract. Issue 23 (12th December 2019)

• Record Type: Journal Article
• Authors: 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
• Is Part Of: Journal of applied polymer science. Volume 137:Issue 23(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-12-12
• Subjects: coatings -- polyurethane -- thermogravimetric analysis (TGA); Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.48776
• Languages: English
• ISSNs: 0021-8995

Abstract

ABSTRACT: 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. Abstract :