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<p>The self-assembly of ABC amphiphilic multiblock terpolymers into multicompartment micelles in dilute solutions has gained significant attention. In this study, we employed the three-dimensional (3D) self-consistent field theory (SCFT) method to explore the micellization behavior of amphiphilic linear A-<i>b</i>-(B-<i>alt</i>-C)₂-<i>b</i>-A multiblock terpolymers in a solvent selective for the terminal A block. A variety of intriguing micellar structures were identified, including B- and C-disk segmented vesicles, B- and C-toroidal packing within a tubular structure, BC-segmented toroidal micelles, infinite BC-segmented cylindrical micelles, and BC-mixed toroidal micelles. Owing to the connection of blocks B and C with block A, the segmented arrangement of layers B and C follows the axial direction of the structures. As the volume fraction of the A block (<i>f</i><sub>A</sub>) decreases, a structural transition from vesicles to micelles occurs in the linear A-<i>b</i>-(B-<i>alt</i>-C)₂-<i>b</i>-A system, in contrast with the behavior of A(BC)<sub>n</sub> multiblock terpolymers, which transition from micelles to vesicles. The SCFT method has proven to be an effective tool for identifying molecular architectures with the potential to self-assemble into complex, technologically valuable hierarchical structures.</p>

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Discovering the micellization of linear A-b-(B-alt-C)2-b-A multiblock terpolymers in selective solvents

  • 期刊论文

  • 发表日期：

    2025年5月21日

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  • Hsuan-Hung Liu

摘要

The self-assembly of ABC amphiphilic multiblock terpolymers into multicompartment micelles in dilute solutions has gained significant attention. In this study, we employed the three-dimensional (3D) self-consistent field theory (SCFT) method to explore the micellization behavior of amphiphilic linear A-b-(B-alt-C)₂-b-A multiblock terpolymers in a solvent selective for the terminal A block. A variety of intriguing micellar structures were identified, including B- and C-disk segmented vesicles, B- and C-toroidal packing within a tubular structure, BC-segmented toroidal micelles, infinite BC-segmented cylindrical micelles, and BC-mixed toroidal micelles. Owing to the connection of blocks B and C with block A, the segmented arrangement of layers B and C follows the axial direction of the structures. As the volume fraction of the A block (fA) decreases, a structural transition from vesicles to micelles occurs in the linear A-b-(B-alt-C)₂-b-A system, in contrast with the behavior of A(BC)n multiblock terpolymers, which transition from micelles to vesicles. The SCFT method has proven to be an effective tool for identifying molecular architectures with the potential to self-assemble into complex, technologically valuable hierarchical structures.