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Modulating Ligand-Exchange Dynamics on Metal-Organic Polyhedra for Reversible Sorting and Hybridization of Miktoarm Star Polymers |
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| Authors: | Yuyan Lai Xiaofeng He Binghui Xue Mu Li Dr Huihui Wang Dr Wei Huang Dr Jia-Fu Yin Dr Mingxin Zhang Prof Dr Panchao Yin |
| Institution: | 1. State Key Laboratory of Luminescent Materials and Devices, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640 P. R. China
Contribution: Investigation (lead), Methodology (equal), Writing - original draft (equal);2. State Key Laboratory of Luminescent Materials and Devices, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640 P. R. China Contribution: Investigation (equal), Methodology (supporting), Writing - original draft (equal);3. State Key Laboratory of Luminescent Materials and Devices, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640 P. R. China Contribution: Data curation (equal), Methodology (supporting), Validation (supporting);4. State Key Laboratory of Luminescent Materials and Devices, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640 P. R. China Contribution: Formal analysis (equal), Resources (supporting), Validation (supporting);5. State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228 P. R. China Contribution: Methodology (supporting), Validation (supporting);6. State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228 P. R. China Contribution: Formal analysis (supporting), Validation (supporting);7. State Key Laboratory of Luminescent Materials and Devices, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640 P. R. China Contribution: Formal analysis (supporting), Visualization (supporting);8. State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228 P. R. China;9. State Key Laboratory of Luminescent Materials and Devices, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640 P. R. China |
| Abstract: | The precise synthesis of miktoarm star polymers (MSPs) remains one of the great challenges in synthetic chemistry due to the difficulty in locating appropriate structural templates and polymer grafting/growing strategies with high selectivity and efficiency. Herein, ≈2 nm metal-organic polyhedra (MOPs), constructed from the coordination of isophthalic acid (IPA) and Cu2+, are applied as templates for the precise synthesis of 24-arm MSPs for their unique logarithmic ligand-exchange dynamics. Six different polymers are prepared with IPA as an end group and they further coordinated with Cu2+ to afford the corresponding 24-arm star homo-polymers. MSPs can be obtained by mixing targeted homo-arm star polymers in solutions upon thermal annealing. The compositions of MSPs can be facilely and precisely tuned by the recipe of the star polymer mixtures used. Interestingly, the obtained MSPs can be sorted into homo-arm star polymers through a typical solvent extraction procedure. The hybridization and sorting process can be reversibly conducted through the cycle of thermal annealing and solvent treatment. The complex coordination framework not only opens new avenues for the facile and precise synthesis of MSPs and MOPs with hybrid functionalities, but also provides the capability to design sustainable polymer systems. |
| Keywords: | Inorganic–Organic Hybrid Materials Metal–Organic Polyhedra Miktoarm Star Polymers Solution Dynamics Sustainable Polymers |