The amino-acid imidazoline amphoteric surfactant was prepared from dichloroethane and vegetable-oil fatty acid as raw materials by aminolysis, esterffication and hydroxymethylation.

以二氯乙烷与植物油等为原料,通过解、酯、羟甲缩合反应制类咪唑啉型两性表面活性剂。