多层级结构材料实验室--文韬课题组
Laboratory of Hierarchical Materials

Congratulations! Jun Yuan's work is accepted by ACS Macro Letters!

发表时间:2021-10-05 09:20

Confined Self-Assemblies of Chiral Block Copolymers in Thin Films


https://pubs.acs.org/doi/10.1021/acsmacrolett.1c00458





Self-assembly of chiral block copolymers (BCPs*) can give rise to ordered chiral nanostructures, that is, a helical phase (H* phase), via chirality transfer from the molecular level to mesoscale. In the present work, we reported the self-assembly of BCPs* under one-dimensional spatial confinement. The morphological dependence of self-assembled BCPs* on the molecular weights and the film thickness was investigated. As chiral nanostructures, the H* phase can be formed in bulk, nonchiral nanostructures that were observed in the thin films. Also, the topology effect of self-assembly of BCPs* was examined. The self-assembly of BCPs* with a star-shaped topology exhibited a distinct morphology compared with that of linear BCPs*. The present work provides new insight into the chirality transfer of macromolecules under spatial confinemen



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