摘要
采用亚磷酸与硫酸复合催化剂合成了聚乙二醇双硬脂酸酯,最佳工艺条件:n酸:n醇时为2、8:1(mol:mol),复合催化剂用量为1.0%(以聚乙二醇计),反应温度150℃,反应时间5h,真空度97.3kPa。
Polyethylene glycols stearic acid diester was synthesized with phosphorous acid and sulfuric acid as compound catalyst. The optimum reaction condition obtained was: n (acid): n (polyglycol), 2. 8: 1 (mol: mol); amount of compound catalyst, 1. 0%; reaction temperature, 150℃; reaction the: 5h; degree of vacuas, 97. 3kPa.
出处
《江苏化工》
1997年第6期21-22,共2页
Jiangsu Chemical Industry
关键词
聚乙二醇
硬脂酸酯
表面活性剂
合成
非离子型
Polyethylene glycols stearic acid diester Poly-glycols Stearic acid Phosphorous acid Sulfuric acid Compound catalyst