摘要
以长链脂肪族烷基伯胺、乙醇胺等为原料,经多步反应制得了1种新型的氨基酸两性表面活性剂——N-长链烷基-β-氨基-丙烯酰乙醇胺-α-氨基乙酸钠。通过化学分析的方法确定了各步反应的合成工艺条件:第1步反应,时间5～6h,温度90℃;第2步反应,反应物的物质的量比1:1,温度115℃,时间4h,催化剂质量分数0.5%;最后1步反应,温度85℃,时间2.5h。对其各项表面化学性能进行了测定,结果显示产物具有优良的润湿性能和表面活性、较宽等电区范围和较差的起泡性。
In the paper,a new amino acid amphoteric surfactant,n-long chain alkyl-β-amino-ethanolamine acrylamide-α-sodium glycinate,was synthesized through many steps of reaction from the raw materials alkyl primary amine and ethanolamine. The synthesis technics were optimized through chemical analysis,the reaction conditions of first step were identified as reaction temperature at 90 ℃ for 5~6 h. ; The reaction conditions of the second step were identified as,mole ratio of reacting materials is 1:1,reaction temperature at 115 ℃ for 4 h.,the mass fraction of activator is 0.5%. The reaction conditions of the last step were identified as,reaction temperature at 85℃ for 2.5 h. The surface chemical characteristics were determined,whose results showed that the product has an excellent wetting property and surface activity,wide isoelectric range,and poor foaming property.
出处
《化工生产与技术》
CAS
2008年第5期26-29,共4页
Chemical Production and Technology
