杰纳斯
杰纳斯粒子
材料科学
粒子(生态学)
动力学
两亲性
下降(电信)
纳米技术
化学物理
自组装
化学工程
共聚物
复合材料
聚合物
化学
物理
经典力学
工程类
地质学
海洋学
电信
计算机科学
作者
Alex McGlasson,E.T. Morgenthaler,Laura C. Bradley,Thomas P. Russell
标识
DOI:10.1002/adfm.202306651
摘要
Abstract It has been shown both theoretically and experimentally that amphiphilic Janus particles are the most effective solid surfactants to stabilize interfaces. In most cases, the Janus particles investigated have uniform morphologies with Janus boundaries dividing the particle into halves. However, there are many examples of Janus particles where the hydrophilic and hydrophobic domains are not equally distributed. The effects of this uneven domain distribution on the mechanism and kinetics of Janus particle assembly, and final equilibrium state are not well‐understood. Dynamic pendant drop tensiometry offers a means to probe both the equilibrium assembly and the kinetics and mechanism of assembly. Here, the interfacial kinetics and assembly of spherical anisotropic Janus particles are investigated using dynamic pendant drop tensiometry. Systematic studies quantifying the time‐dependent interfacial behavior as a function of Janus particle morphology, chemical composition, particle concentration, and NaOH and HCl concentration are performed. These studies shed light on the assembly mechanism of more complex Janus particle morphologies and highlight their effectiveness as interface stabilizers.
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