Discrete Diblock Copolymers with Precise StereoconfigurationClick to copy article linkArticle link copied!
- Dongdong ZhouDongdong ZhouCollege of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, ChinaSouth China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, ChinaMore by Dongdong Zhou
- Miao XuMiao XuSouth China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, ChinaMore by Miao Xu
- Zhanhui GanZhanhui GanSouth China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, ChinaMore by Zhanhui Gan
- Xiao-Yun YanXiao-Yun YanSouth China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, ChinaMore by Xiao-Yun Yan
- Zhuang MaZhuang MaSouth China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, ChinaMore by Zhuang Ma
- Juncheng ZhengJuncheng ZhengSouth China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, ChinaMore by Juncheng Zheng
- Xue-Hui Dong*Xue-Hui Dong*Email: [email protected]South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, ChinaMore by Xue-Hui Dong
Abstract
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.
Cited By
This article is cited by 1 publications.
- 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
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, 6076-6089. https://doi.org/10.1021/acs.macromol.4c00439
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