欢迎访问《日用化学工业（中英文）》，今天是
日用化学工业（中英文）

日用化学工业（中英文） ›› 2025, Vol. 55 ›› Issue (12): 1552-1559.doi: 10.3969/j.issn.2097-2806.2025.12.007

• 基础研究 • 上一篇    下一篇

聚甘油酯类乳化剂疏水基对液晶形成的影响及其促进机制研究

张倩洁1,赵振志1,王珊珊2,顾洁2,吕智2,张婉萍1,*()   

  1. 1 上海应用技术大学 香料香精化妆品学部， 上海 201418
    2 上海相宜本草化妆品股份有限公司， 上海 200080
  • 收稿日期:2024-12-12 修回日期:2025-12-26 出版日期:2025-12-22 发布日期:2026-01-23
  • 基金资助:
    上海相宜本草化妆品股份有限公司研究基金资助(J2023-272)

Effect of hydrophobic groups of polyglycerol ester emulsifiers on liquid crystal formation and its promotion mechanism

Qianjie Zhang1,Zhenzhi Zhao1,Shanshan Wang2,Jie Gu2,Zhi Lv2,Wanping Zhang1,*()   

  1. 1 Flavor and Cosmetics Department, Shanghai Institute of Technology, Shanghai 201418, China
    2 Shanghai Inoherb Cosmetics Co., Ltd., Shanghai 200080, China
  • Received:2024-12-12 Revised:2025-12-26 Online:2025-12-22 Published:2026-01-23
  • Contact: *E-mail: zhangqj_sit@126.com.

RichHTML

13

PDF (PC)

5

赞

摘要： 通过对不同疏水链数目的聚甘油酯类乳化剂的二元相行为、表面张力、饱和吸附量及临界堆积参数进行考察，研究疏水基对聚甘油酯类乳化剂层状液晶形成的影响，同时复配不同比例脂肪醇进行临界堆积参数促进机制研究。结果表明：聚甘油酯类乳化剂分子自发形成层状液晶结构，随疏水相互作用增强，乳化剂分子在气液界面富集，临界堆积参数（CPP）增加，液晶区的出现逐步向低浓度和高温度区域扩展，在更广泛的浓度区域形成结晶相；18醇与乳化剂分子的亲水头基之间通过氢键作用、疏水尾链通过疏水相互作用形成更加紧密的规整排列，降低了乳化剂分子的最小截面积A0，更有效地提升混合胶束体系的临界堆积参数CPP，含量高于8%，乳化剂-18醇分子间的疏水相互作用增强，液晶结构的数量明显增多且规整性增加，有利于液晶结构的形成。

关键词: 聚甘油酯类乳化剂, 自组装, 液晶, 临界堆积参数

Abstract:

In this paper, by investigating the binary phase behavior, surface tension, saturated adsorption capacity and critical packing parameters of polyglycerol ester emulsifiers with different numbers of hydrophobic chains, the influence of hydrophobic groups on the formation of layered liquid crystals of polyglycerol ester emulsifiers was studied. At the same time, the promotion mechanism of critical packing parameters was studied by compounding fatty alcohols in different proportions. The results show that polyglycerol ester emulsifier molecules spontaneously form layered liquid crystal structure, and with the enhancement of hydrophobic interaction, emulsifier molecules are enriched at the gas-liquid interface, CPP increases, the appearance of liquid crystal regions gradually expands to low concentration and high temperature regions, forming crystalline phases in a wider concentration region. The hydrophilic head groups of C18 alcohol and emulsifier molecules form a closer regular arrangement through hydrogen bonding, and the hydrophobic tail chain interact through hydrophobic interaction, which reduces the minimum cross-sectional area A0 of emulsifier molecules and more effectively improves the mixed micelle system. When the concentration is higher than 8%, the critical stacking parameter CPP increases. The hydrophobic interaction between emulsifier-C18 alcohol molecules is enhanced, the number and regularity of liquid crystal structures are significantly increased, which is conducive to the formation of liquid crystal structures.

Key words: polyglycerol ester emulsifier, self-assembly, liquid crystals, critical packing parameter

中图分类号: 

  • TQ423