期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 32, 期 17, 页码 1373-1378出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201100205
关键词
blowing agents; foams; polyurethanes; renewable resources; synthesis
This paper reports on the synthesis of a new highly reactive diisocyanate monomer based on hydroxymethylfurfural. It further describes its catalyst-free conversion to linear-chain thermoplastic polyurethanes as well as to cross-linked polyurethane foams. In addition, a novel strategy for the synthesis of polyurethane foams without the necessity of using water is developed. Nitrogen is utilized herein as blowing agent which is formed during Curtius rearrangement of a new furan based carboxylic azide into its corresponding diisocyanate.
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