Interfacial Activity of Starch-Based Nanoparticles at the Oil-Water Interface.
Understanding the interfacial activity of polysaccharide nanoparticles adsorbed at oil-water interfaces is essential and important for the application of these nanoparticles as Pickering stabilizers. The interfacial properties of starch-based nanospheres (SNPs) at the interface of an n-hexane-water system were investigated by monitoring the interfacial tension at different bulk concentrations. The three-phase contact angle (θ) and the adsorption energy (ΔE) increased with increasing size and degree of substitution with octenyl succinic groups (OSA) in the particles. Compared with the OSA-modified starch (OSA-S) macromolecule, the SNPs effectively reduced the interfacial tension of the n-hexane-water system at a relatively higher concentration. These results and the method reported herein are useful for selecting and preparing polysaccharide nanoparticles as Pickering stabilizers for oil-water emulsions.
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, PR China.|University of Science and Technology of China , Hefei 230026, PR China.
Xiaopeng
0000-0002-2670-0289
X
Pei
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, PR China.|University of Science and Technology of China , Hefei 230026, PR China.
Kankan
K
Zhai
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, PR China.|University of Chinese Academy of Sciences , Beijing 100049, PR China.
Xuechen
0000-0001-6779-6443
X
Liang
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, PR China.|University of Chinese Academy of Sciences , Beijing 100049, PR China.
Yukun
Y
Deng
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, PR China.
Ying
0000-0003-3442-6328
Y
Tan
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, PR China.
Pixin
P
Wang
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, PR China.
Kun
0000-0003-3573-4605
K
Xu