Synthesis and characterization of free-isocyanate polyurethane as renewable coating materials. Issue 1 (January 2016)

• Record Type: Journal Article
• Authors: Saputra, O A; Apriany, K; Putri, F R; Firdaus, M
• Is Part Of: IOP conference series. Volume 107:Issue 1(2016)
• Publication Date: 2016-01
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/107/1/012048
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Green synthesis of diethyl ethane-1, 2-diyldicarbamate (M1) as starting dimer of free-isocyanate polyurethane from an excess of diethyl carbonate and ethylene diamine catalyzed by TBD (1, 5, 7-triazabicyclo-[4, 4, 0]dec-5-ene) at 80 °C for 4 hours has been carried out. The product has high yield and purity up to 92% and 99, 18%, respectively. The product was obtained in the form of rod-shaped white crystals and characterized with 1 H-NMR, 13 C-NMR and FTIR spectroscopy. Polyurethane (P1) has successfully synthesized via polycondensation methods by reacting of M1 with cis-2-butene-1, 4-diol. This reaction also catalyzed by TBD organo catalyst. P1 chemical structure has been confirmed using 1 H-NMR and FTIR techniques.