作者:I. N. Bakirova、E. I. Galeeva、A. Ya. Samuilov
DOI:10.1134/s1070363212090162
日期:2012.9
studied of the process of chemical degradation of elastic polyurethane foam under the action of thiodiglycol and its mixture with oxypropylated oligopolyol. It was established that in the systems simulating the process of polyurethane degradation the introduction of sulfur atoms in the hydrocarbon chain of glycol reduced its activity in the reaction with the urethane and reduced the thermodynamic stability
研究了在硫代二甘醇及其与羟丙基化低聚多元醇的混合物作用下弹性聚氨酯泡沫化学降解过程的模式。已经确定,在模拟聚氨酯降解过程的系统中,在二醇的烃链中引入硫原子降低了其在与氨基甲酸酯反应中的活性,并降低了所形成的氨基甲酸酯的热力学稳定性。基于再循环的含硫低聚醚-氨基甲酸酯,获得了耐油和汽油的聚氨酯密封剂。