皮克林乳液
微观结构
石英晶体微天平
材料科学
粘弹性
化学工程
乳状液
氢键
扫描电子显微镜
胶体
动态力学分析
两亲性
纳米技术
复合材料
聚合物
共聚物
化学
纳米颗粒
有机化学
分子
吸附
工程类
作者
Shuntian Huang,Zhaojun Wang,Qichang Zhou,Shujuan Yang,Riting Huang,Keyang Mai,Wenqi Qin,Junhao Huang,Gaobo Yu,Feng Ye,Jiacheng Li
标识
DOI:10.1016/j.carbpol.2023.120720
摘要
Polysaccharide-based soft colloidal particles mediated by the dynamic bonding-engineered interfacial self-assembly can regulate the properties of oil-water interfacial films, availing the stability of emulsions under a wide pH range. The amphiphilic phenylboronic alginate soft colloidal particles (Alg-PBA) were designed to stabilize pH-responsive Pickering emulsions (PEs). Combining stability analysis with quartz crystal microbalance and dissipation monitoring (QCM-D), the microstructure and viscoelasticity of Alg-PBA at the oil-water interface were determined. The results showed that PEs stabilized by Alg-PBA due to a thicker and stronger viscoelastic interface film induced by BO bonds and hydrogen bonds. The structure-function relationship of the Alg-PBA emulsifier driven by dynamic bonds was further elaborated at multiple scales by laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). Meanwhile, the microstructure of aerogels templated by emulsion could be tuned by adjusting dynamic bonds, which provides a new idea for polysaccharide soft material engineering.
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