Dynamic host-guest interfacial recognition of alginate-based β-cyclodextrin/cholic acid supra-amphiphiles for stabilizing multi-type Pickering emulsion

被引：3
作者：
Wang, Chen [1 ]
Yang, Shujuan [1 ]
Qin, Wenqi [1 ]
Liu, Kaiyue [1 ]
Shang, Jirui [1 ]
Feng, Yuhong [1 ]
Yu, Gaobo [1 ]
Li, Jiacheng [1 ]
机构：
[1] Hainan Univ, Sch Chem & Chem Engn, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2024年 / 682卷
基金：
中国国家自然科学基金;
关键词：
Supra-amphiphilic aggregates; Host-guest recognition; Macromolecular surfactant; Multi-type emulsion; High interfacial activity; PARTICLES; DERIVATIVES; FABRICATION; MULTISCALE; STRATEGY;
D O I：
10.1016/j.colsurfa.2023.132950
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The multi-type Pickering emulsions were formed by macromolecule-based soft colloidal emulsifiers due to its great architectural tailorability. Herein, the supramolecular beta-cyclodextrin-modified alginate/cholic acid-grafted alkyl chain (SA-CD/CA-C12) system was designed by beta-CD/CA-engineered host-guest molecular recognition at oil-water interface. Especially, supra-amphiphilic SA-CD/CA-C12 self-assemblies acted as excellent colloidal surfactant with high interfacial activity (0.74 mN/m), and the interfacial adsorption films exhibited higher coverages and thickness in contrast to that of alone amphiphilic SA-CD, and CA-C12 system, further preventing interdroplets aggregation, collision, and coalescence. Furthermore, the W/O, bicontinuous, and O/W emulsions were generated by altering the oil/water volume ratio due to the dynamical host-guest recognition-induced selfregulated flexibility of macromolecular architectonics. Additionally, the microstructures of supramolecular hostguest emulsion-templated aerogel were regulated by tuning the aggregation behaviors of supramolecular hostguest interfacial system, providing a new strategy for engineering soft materials.
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页数：14
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