biostudies-literatureUnknown9(1)Han LTwo-dimensional (2-D) micro- and nano-architectures are attractive because of their unique properties. However, the formation of 2-D supramolecular highly symmetrical structures with considerable control is still a major challenge. Here we present a simple approach for the preparation of regular and homogeneous 2-D fluorescent square non-crystallization micelles with conjugated diblock copolymers PPV₁₂-b-P2VP _n through a process of dissolving-cooling-aging. The scale of the formed micelles can be controlled by the ratio of PPV/P2VP blocks and the concentration of the solution. The results reveal that the micelles of PPV₁₂-b-P2VP _n initially form 1-D structures and then grow into 2-D structures in solution, and the growth is driven by intermolecular π-π interactions with the PPV₁₂ blocks. The formation of 2-D square micelles is induced by herringbone arrangement of the molecules, which is closely related to the presence of the branched alkyl chains attached to conjugated PPV₁₂ cores.Nature communications865https://www.ebi.ac.uk/biostudies/studies/S-EPMC5830438biostudies-literatureUniform two-dimensional square assemblies from conjugated block copolymers driven by π-π interactions with controllable sizes.PMC5830438Wang MQian HHe FHan LChen WJia XfalseUniform two-dimensional square assemblies from conjugated block copolymers driven by π-π interactions with controllable sizes.Two-dimensional (2-D) micro- and nano-architectures are attractive because of their unique properties. However, the formation of 2-D supramolecular highly symmetrical structures with considerable control is still a major challenge. Here we present a simple approach for the preparation of regular and homogeneous 2-D fluorescent square non-crystallization micelles with conjugated diblock copolymers PPV₁₂-b-P2VP _n through a process of dissolving-cooling-aging. The scale of the formed micelles can be controlled by the ratio of PPV/P2VP blocks and the concentration of the solution. The results reveal that the micelles of PPV₁₂-b-P2VP _n initially form 1-D structures and then grow into 2-D structures in solution, and the growth is driven by intermolecular π-π interactions with the PPV₁₂ blocks. The formation of 2-D square micelles is induced by herringbone arrangement of the molecules, which is closely related to the presence of the branched alkyl chains attached to conjugated PPV₁₂ cores.2018-01-01T00:00:00Z2018 Feb2025-04-19T00:11:03.752Z2019-03-26T23:05:40ZS-EPMC58304382949138410.1038/s41467-018-03195-y