Abstract
AbstractBlock copolymer melts have been previously used to control the position and alignment of anisotropic nanoparticles. In this work, 2D and 3D mesoscopic simulations are used to explore the phase behavior of block copolymer/nanoparticle systems. The method combines a time‐dependent Ginzburg‐Landau for the polymer and Brownian dynamics for the anisotropic nanoparticles. Rhomboidal and spheroidal shaped particles are simulated in two and three dimensions, respectively. It is found that the nanoparticle nematic order aligned by the block copolymer domains enhances the lamellar phase of the block copolymer, due to an anisotropy‐driven phase transition. Additionally, anisotropic nanoparticles within circular‐forming block copolymer leads to a competition between the nematic colloidal ordering and the hexagonally ordered mesophase. At large concentrations, the nematic order dominates, deforming the block copolymer mesophase.
Highlights
Block copolymer melts have been previously used to control the position and body-centered cubic(BCC) spheres
It is found that the nanoparticle acquire a defined orientation with respect to nematic order aligned by the block copolymer domains enhances the lamellar the BCP mesophase
We will explore the alignment of rhomboidal NPs within BCP melts, focusing on the lamellar morphology and explore the emergence of nematic order templated by the BCP domains
Summary
Block copolymer melts have been previously used to control the position and body-centered cubic(BCC) spheres. Rhomboidal and spheroidal shaped particles are simulated in trol the dispersion of the NPs within the BCP mesophase.[1,2,3] NPs with additional degrees of freedom—due to nonspherical shapes[4,5] or chemically inhomogeneous coating in its surface[6,7]—can two and three dimensions, respectively. It is found that the nanoparticle acquire a defined orientation with respect to nematic order aligned by the block copolymer domains enhances the lamellar the BCP mesophase. Anisotropic nanoparticles within circular-forming block copolymer leads to a competition between the nematic colloidal ordering and the hexagonally ordered mesophase. Block copolymer(BCP) melts have been largely used as tem- shaped NPs have been shown to self-assemble into a rich phase plates to control the position of colloidal nanoparticles (NPs) behavior,[13] ranging from liquid crystals to nanocrystals.[14]
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