Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 34, Issue 19, Pages 1569-1574Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201300503
Keywords
fatty acids; non-isocyanate polyurethanes; polycondensation; polyurethanes; renewable resources
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1,5,7-Triazabicyclo[4.4.0]dec-5-ene (TBD)-catalyzed polycondensation reactions of fatty acid derived dimethyl dicarbamates and diols are introduced as a versatile, non-isocyanate route to renewable polyurethanes. The key step for the synthesis of dimethyl carbamate monomers from plant-oil-derived dicarboxylic acids is based on a sustainable base-catalyzed Lossen rearrangement. The formed polyurethanes with molecular weights up to 25 kDa are characterized by SEC, DSC, and NMR analysis.
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