Magnetic field induced uniaxial alignment of the lyotropic liquid-crystalline PMMA-grafted Fe₃O₄ nanoplates with controllable interparticle interaction.

ABSTRACT: Magnetite (Fe₃O₄) nanoplates with a hexagonal platelet shape were synthesized by two steps: hydrothermal synthesis of iron(iii) oxide (α-Fe₂O₃) nanoplates followed by wet chemical reduction of the α-Fe₂O₃ nanoplates. Then, poly(methyl methacrylate) (PMMA) chains were grafted onto the surface of the hexagonal Fe₃O₄ nanoplates (F) via surface-initiated atom transfer radical polymerization (SI-ATRP), which ensures dispersion stability in organic solvents and ionic liquids. After mixing with 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([Emim⁺][NTf₂ ^-]), a representative ionic liquid, the resulting PMMA-modified F were found to show good lyotropic li

SUBMITTER: Shen C 

PROVIDER: S-EPMC9417206 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature