Page 159 - 《精细化工》2021年第11期

第 38 卷第 11 期 精 细 化 工 Vol.38, No.11
2021 年 11 月 FINE CHEMICALS Nov. 2021

表面活性剂
椰子油酰基芳香族氨基酸盐的

绿色合成与性能评价

*
*
王 楠，张平平，陈政宏，王 策 ，徐宝财
（北京工商大学 轻工科学技术学院，北京 100048）

摘要：采用绿色合成方法，利用椰子油与含芳香环取代基的组氨酸钠、苯丙氨酸钠、酪氨酸钠直接进行酰胺化
反应制备了 3 种椰子油酰基芳香族氨基酸盐。采用 HPLC-MS、FTIR 对产物组成和结构进行了表征，并对合成
产品的性能进行了测定。结果表明，椰子油酰基氨基酸盐表面活性剂的界面性能受氨基酸结构的影响较大，椰
–5
–5
子油酰基苯丙氨酸钠与椰子油酰基组氨酸钠的临界胶束浓度（CMC）分别为 9.84×10 和 6.79×10 mol/L，均远
–2
小于椰子油酰基酪氨酸钠的 CMC（1.54×10 mol/L）。3 种椰子油酰基氨基酸盐表面活性剂均具有良好的乳化性、
起泡性及泡沫稳定性，乳液分出 10 mL 水相最长需要 342 s，泡沫高度最高达到 157 mm，稳泡性参数，即发泡
结束后 30 min 时泡沫高度（H5）与 0 min 泡沫高度（H1）比值（H5/H1）最高达到 0.898；耐硬水性等同或优
于皂类；在蒸馏水中的去污力与十二烷基苯磺酸钠（LAS）、α-烯基磺酸钠（AOS）、椰子油钠皂等传统表面活
性剂相当。
关键词：氨基酸表面活性剂；乳化；泡沫；去污；表面张力
中图分类号：TQ423 文献标识码：A 文章编号：1003-5214 (2021) 11-2305-07

Green synthesis and properties evaluation of coconut oil
acyl aromatic amino acid salts

WANG Nan, ZHANG Pingping, CHEN Zhenghong,
*
*
WANG Ce , XU Baocai
（School of Light Industry, Beijing Technology and Business University, Beijing 100048, China）

Abstract: Three kinds of coconut oil acyl aromatic amino acid salts were prepared by green synthesis method
(amination) of coconut oil with histidine sodium, phenylalanine sodium and tyrosine sodium containing
aromatic cyclic substituents. The composition and chemical structure of products were confirmed by
HPLC-MS and FTIR. The properties of the synthetic products were tested. The results showed that the
interfacial properties of the products depended significantly on amino acid types. The critical micelle
concentrations (CMC) of coconut acyl phenylalanine sodium and coconut acyl histidine sodium were
9.84×10 –5 and 6.79×10 –5 mol/L, respectively, far smaller than that of coconut acyl tyrosine sodium
(1.54×10 –2 mol/L). These sodium coconut acyl amino acid surfactants exhibited good emulsification,
foaming properties and foaming stability. The maximum separation time of 10 mL aqueous phase from
emulsion was 342 s. The foam height reached a maximum of 157 mm. The foam stability parameter, i.e. the
ratio of foam height at 30 min (H5) to the foam height at 0 min after foaming (H1), (H5/H1) was as large as
0.898. Hard water resistance of the three amino acid surfactants was equal or better than that of soap. The
detergency ability in distilled water of acyl amino acid surfactants was comparable to that of traditional
surfactants, such as sodium linear sodium dodecylbenzene sulfonate (LAS), sodium α-olefin sulfonate (AOS)
and sodium soap of coconut oil.

收稿日期：2021-05-07; 定用日期：2021-07-21; DOI: 10.13550/j.jxhg.20210461
基金项目：国家重点研发计划（2017YFB0308700）；国家自然科学基金（22008002）；北京市教委项目（KM202110011001）
作者简介：王 楠（1989—），女，实验师，E-mail：wangnanbtbu@163.com。联系人：王 策（1989—），男，副教授，E-mail：
wangce@btbu.edu.cn；徐宝财（1963—），男，教授，E-mail：xubaoc@btbu.edu.cn。