二元聚合物接枝纳米粒子的界面自组装行为

打开文本图片集

中图分类号：0414;0552 文献标志码：A

Interfacial Self-Assembly Behaviors of Binary Mixtures of Polymer-Grafted Nanoparticles

SHAO Mingxu， LIN Jiaping， ZHANG Liangshun （Shanghai Key Laboratory of Advanced Polymeric Materials， School of Materials Science and Engineering， East China University of Science and Technology， Shanghai 2oo237，China）

Abstract： Asa mesoscale “atomic analogue”，polymer-grafted nanoparticlescan self-assmble into periodic ordered superlattices，representinganovel classofcondensedmater.Inthisstudy，acoarse-grained model of polymer-grafted nanoparticles coupled with Monte Carlo method is proposed toinvestigate the interfacial self-asembly behaviorsof binary nanoparticle systems.Monte Carlosimulationresultsdemonstrate that binarynanoparticles，through interfacialself-assmbly， can form various types of superlattices such as AB， AB2 AB3 ，and A4B6 architectures. The types and architectures of these superlaticesareeectivelyregulatedbykeyparametersincudinginterfacialinteractionstrength，efectiveradiusratioand interparticle interaction intensity.Importantly，MonteCarlosimulationnotonlyreproduces experimentalobservationsof interfacial self-assemblyofbinary nanoparticles，but alsoreveals multiple previously unreported superlaticearchitectures.

Key words： nanoparticle；interfacial self-assembly；theoretical simulation;superlatice；phase diagram

尺寸在 1～100nm 、形状高度规整的纳米粒子被认为介尺度的"原子等价物"[1-3]。（剩余11768字）