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Discrete Diblock Copolymers with Precise Stereoconfiguration
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    Discrete Diblock Copolymers with Precise Stereoconfiguration
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    • Dongdong Zhou
      Dongdong Zhou
      College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
      South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
    • Miao Xu
      Miao Xu
      South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
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    • Zhanhui Gan
      Zhanhui Gan
      South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
      More by Zhanhui Gan
    • Xiao-Yun Yan
      Xiao-Yun Yan
      South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
      More by Xiao-Yun Yan
    • Zhuang Ma
      Zhuang Ma
      South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
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    • Juncheng Zheng
      Juncheng Zheng
      South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
    • Xue-Hui Dong*
      Xue-Hui Dong
      South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
      Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
      *Email: [email protected]
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    Macromolecules

    Cite this: Macromolecules 2023, 56, 5, 1855–1862
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    https://doi.org/10.1021/acs.macromol.2c02506
    Published March 3, 2023
    Copyright © 2023 American Chemical Society

    Abstract

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    This work develops an iterative growth approach to synthesize discrete oligo lactic acids with exactly defined stereoconfiguration by connecting enantiomeric monomers (i.e., L- and D-lactic acid) following a predesigned sequence. A library of diblock copolymers with uniform chain length was modularly prepared by conjugating the stereoisomeric blocks with a chemically incompatible chain. The precise chemical structure eliminates all molecular uncertainties associated with statistical distribution and decouples the intertwined variables. A rich collection of ordered structures, including unconventional Frank–Kasper A15 and σ phases, was captured. The stereoconfiguration exerts pronounced impacts on chain conformation, leading to appreciable variations of lattice dimension and phase stability. This study quantitatively assessed the critical contribution of stereoconfiguration on packing behaviors, calling for particular attention to this essential molecular parameter as an effective handle for rational structural engineering.

    Copyright © 2023 American Chemical Society

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    Supporting Information

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.macromol.2c02506.

    • Materials and methods; detailed syntheses; supplementary discussions; and additional characterizations and simulations (PDF)

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    Cited By

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    This article is cited by 1 publications.

    1. Wei-Chi Chiu, Yu-Hung Cheng, Jin-Hao Lin, Chi-Huan Tung, Taiki Nishimura, Chun-Yu Chen, Takuya Isono, Toshifumi Satoh, Hsin-Lung Chen. Tuning the Complex Spherical Phase of Sugar-Based Block Co-Oligomer via Single-Monomer-Mediated Composition Variation. Macromolecules 2024, 57 (13) , 6076-6089. https://doi.org/10.1021/acs.macromol.4c00439

    Macromolecules

    Cite this: Macromolecules 2023, 56, 5, 1855–1862
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.macromol.2c02506
    Published March 3, 2023
    Copyright © 2023 American Chemical Society

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