Room temperature flexible isocyanate-free polyurethane foams. (November 2016)

• Record Type: Journal Article
• Authors: Cornille, Adrien; Guillet, Camille; Benyahya, Sofia; Negrell, Claire; Boutevin, Bernard; Caillol, Sylvain
• Is Part Of: European polymer journal. Volume 84(2016:Nov.)
• Page Start: 873
• Page End: 888
• Publication Date: 2016-11
• Subjects: AHEW amine hydrogen equivalent weight -- CEW carbonate equivalent weight -- CDCl3 deuterated chloroform -- DMA dynamic mechanical analysis -- DMF dimethylformamide -- DMSO-d6 deuterated dimethylsulfoxide -- DSC differential scanning calorimetry -- FTIR Fourier transform infrared spectroscopy -- GC gel content -- NMR nuclear magnetic resonance -- PPOBC poly(propylene oxide) bis carbonate -- PPO-DGE poly(propylene oxide) diglycidyl ether -- SEM scanning microscopy electron -- SI swelling index -- TGA thermogravimetric analysis -- TGA/IR thermogravimetric analysis coupled infrared spectroscopy -- TGA/MS thermogravimetric analysis coupled mass spectrometry -- THF tetrahydrofurane -- TMPTC trimethylolpropane tris carbonate -- TMP-TGE trimethylolpropane triglycidyl ether; Foam -- Non isocyanate polyurethane -- Cyclic carbonate -- Scanning electron microscopy -- Thermal conductivity -- Thermal diffusivity; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; Polymerization; Polymers; Periodicals; Electronic journals; 547.705
• DOI: 10.1016/j.eurpolymj.2016.05.032
• Languages: English
• ISSNs: 0014-3057

Abstract

Graphical abstract: Highlights: Quantitative conversion of aminolysis of cyclic carbonates at room temperature. Synthesis of NIPU foam at room temperature. Mechanical characterization of foam materials. Thermal degradation of NIPU foams. Thermal insulation ability of NIPU foam is reported. Abstract: We report the synthesis of sustainable isocyanate-free polyurethane foams. For the first time, polyhydroxyurethane (PHU) foams were synthesized at room temperature by high conversion step growth polymerization of cyclic carbonates and diamines. Trimethylolpropane tris-carbonate and polypropylene oxide bis-carbonate were copolymerized with EDR148 diamine with thiourea as catalyst. A poly(methylhydrogenosiloxane) was used as blowing agent to foam the NIPU by reaction with diamines. NIPU foams were characterized by scanning electron microscopy and by measurement of their swelling index and apparent density. The mechanical compression and the recovery of these NIPU foams were analyzed by dynamic mechanical analyses at room temperature. The thermal insulating capacities and thermal degradation mechanism were determined.