ArticleProceedings of the National Academy of Sciences of the United States of America2020
Symmetry breaking in particle-forming diblock polymer/homopolymer blends.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- Ionic liquid as a structure-directing agent for Frank-Kasper phase formation in block copolymers.Nature communications · 2026Article
- On and Off Deformability of Supramolecular Micelles in the Soft Frank-Kasper σ Phase.The journal of physical chemistry letters · 2026Article
- Emergence of Frank-Kasper Phases from Chemically Simple Block Copolymer: Poly(ethylene oxide)-Macromolecules · 2026Article
- Process-Directed Self-Assembly of Copolymer Blends: I. Micro- and Macrophase Separation.Macromolecules · 2025Article
- Process-Directed Self-Assembly of Copolymer Blends: II. Continuous Tuning of Structure Size.Macromolecules · 2025Article
- Accessing Frank-Kasper Phases via Blending of Architecturally Distinct and Sustainable Sugar-Based Block Co-Oligomers.Macromolecules · 2025Article
- Stabilizing hexagonally close-packed phase in single-component block copolymers through rational symmetry breaking.Nature communications · 2024Article
- Chromatographic Separation: A Versatile Strategy to Prepare Discrete and Well-Defined Polymer Libraries.Accounts of chemical research · 2024Article
- Self-assembled soft alloy with Frank-Kasper phases beyond metals.Nature materials · 2024Article
- Medial packing and elastic asymmetry stabilize the double-gyroid in block copolymers.Nature communications · 2022Article
- Complex self-assembled lattices from simple polymer blends.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
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Abstract
Compositionally asymmetric diblock copolymers provide an attractive platform for understanding the emergence of tetragonally close-packed, Frank-Kasper phases in soft matter. Block-polymer phase behavior is governed by a straightforward competition between chain stretching and interfacial tension under the constraint of filling space at uniform density. Experiments have revealed that diblock copolymers with insufficient conformational asymmetry to form Frank-Kasper phases in the neat-melt state undergo an interconversion from body-centered cubic (bcc) close-packed micelles to a succession of Frank-Kasper phases (σ to C14 to C15) upon the addition of minority-block homopolymer in the dry-brush regime, accompanied by the expected transition from bcc to hexagonally packed cylinders in the wet-brush regime. Self-consistent field theory data presented here qualitatively reproduce the salient features of the experimental phase behavior. A particle-by-particle analysis of homopolymer partitioning furnishes a basis for understanding the symmetry breaking from the high-symmetry bcc phase to the lower-symmetry Frank-Kasper phases, wherein the reconfiguration of the system into polyhedra of increasing volume asymmetry delays the onset of macroscopic phase separation.
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