Progress in Study of Non-Isocyanate Polyurethane

- Nov 04, 2017 -

Non-isocyanate polyurethane (NIPU) is a novel kind of polyurethane prepared by reaction of cyclo-carbonates and amines without use of toxic isocyanates. NIPU has attracted increasing atteention because of its improvements in porosity, water absorption , and thermal and chemical resistance over conventional polyurethanes . Their potential technological applications include chemical-resistat coating ,sealants,foam,etc.In this paper , on the basis of a comprehensive survey of the currently available literature on NIPU,we summarize recent progress in NIPU , and mainly discuss the syntheses of cyclo-carbonates oligomers,the reaction mechanism , and the preparation and application of different kinds of NIPU.


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