摘要
以甲基丙烯酸缩水甘油酯(GMA)与CO2为原料合成可用于制取新型水性非异氰酸酯聚氨酯的中间体2,3-环碳酸甘油酯甲基丙烯酸酯(DOMA)。考察了催化剂、反应温度、压力以及反应时间等条件对GMA转化率的影响,并对产物进行红外分析和1H-NMR、13C-NMR表征。结果表明,以二甲苯为溶剂,以四丁基溴化铵与ZnI2为共催化剂,在温度为110℃、压力为1.2 MPa下反应4 h,GMA的转化率可达76.5%。
The （2-oxo-1,3-dioxolan-4-yl） methyl-2-methylprop-2-enoate （ DOMA ） which was an important intermediate for producing a novel environmentally friendly water-based material non-isocyanate polyurethane, was synthesized using glycidyl methacrylate （GMA） and carbon dioxide as the raw materials. The effects of catalysts, reaction temperature, atmospheric pressure and reaction time on the conversion of GMA were discussed in detail. The structure of DOMA was characterized by IR spectra, 1H-NMR and 13C_NMR analysis. The results showed that the conversion could be up to 76.5% when xylene was used as solvent, the TBAB and ZnI2 were used as co-catalysts, the reaction temperature was 110 ℃, the reaction time was 4 h and the pressure was 1.2 MPa.
出处
《聚氨酯工业》
2013年第3期21-24,共4页
Polyurethane Industry
