Novel amino acid surfactant and preparation method thereof

The invention discloses a novel amino acid surfactant and a preparation method thereof. The novel amino acid surfactant has a hydrophobic part formed by catechol compounds and a hydrophilic part formed by amino acid, the preparation method comprises the following steps: carrying out Michael addition reaction on o-benzoquinone obtained by oxidizing a catechol compound and amino acid, and carrying out Schiff base reaction to realize covalent linkage of catechol and amino acid, thereby obtaining the novel amino acid surfactant. The preparation method is short in reaction time, simple in process and low in energy consumption, and the prepared surfactant is novel in structure, high in biological safety and excellent in surface performance. 本发明公开了一种新型氨基酸表面活性剂及其制备方法，所述新型氨基酸表面活性剂具有儿茶酚类化合物形成的疏水部分和氨基酸形成的亲水部分，其制备方法包括：将儿茶酚类化合物氧化得到的邻苯醌与氨基酸进行迈克尔加成反应、和席夫碱反应，实现了儿茶酚与氨基酸的共价连接，得到新型氨基酸表面活性剂。本发明制备方法反应时间短、工艺简单、能耗低，制得的表面活性剂结构新颖、生物安全性高、表面性能优良。