Regulation of Ordered Structure of Charged Nanoparticles/Block Copolymers Mixed System
In this paper,the Cell Dynamic System(CDS)method based on the Time-Dependent Ginzburg-Landau theory(TDGL)and the Brownian Dynamics method were used to study the self-assembly behavior of block copolymers(BCPs)mixed systems doped with two oppositely charged nanoparticles(NPs).The effects of the number of nanoparticles,particle radius,particle wetting properties and other factors on the self-assembled ordered structure were systematically discussed,and the results showed that the pairing effect of nanoparticles was the fundamental reason for the structural transformation and formation of the ordered structure of the induced system,and this mechanism was also affected by the radius and number of nanoparticles.The wetting properties of nanoparticles determine their distribution in polymers.Through phase diagram and evolutionary dynamics analysis,the influence mechanism of each parameter on the formation and transformation of composite architecture is further discussed.The results of this study provide a new idea for the regulation of the ordered structure of polymer nanocomposites.
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