Volume 62, Issue 50 e202312844
Research Article

Three-Component Multiblock 1D Supramolecular Copolymers of Ir(III) Complexes with Controllable Sequences

Yan Chen

Yan Chen

State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024 China

Contribution: ​Investigation (lead), Methodology (lead), Writing - original draft (lead), Writing - review & editing (lead)

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Dr. Qingyun Wan

Dr. Qingyun Wan

Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China

Contribution: Formal analysis (equal), Validation (equal)

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Dr. Yusheng Shi

Dr. Yusheng Shi

State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024 China

Contribution: Resources (supporting)

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Prof. Bingtao Tang

Prof. Bingtao Tang

State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024 China

Contribution: Resources (equal), Writing - review & editing (supporting)

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Prof. Chi-Ming Che

Corresponding Author

Prof. Chi-Ming Che

Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China

Contribution: Resources (equal), Supervision (equal), Writing - review & editing (equal)

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Prof. Chun Liu

Corresponding Author

Prof. Chun Liu

State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024 China

Contribution: Funding acquisition (lead), Project administration (lead), Supervision (lead), Writing - review & editing (lead)

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First published: 31 October 2023
Citations: 9

Graphical Abstract

Three-component multiblock 1D supramolecular copolymers with up to 9 blocks have been successfully synthesized by precise control of the pathway complexity of Ir(III) complexes. The segmented structures of the multiblock copolymers could be characterized by both TEM and SEM. These three-component block copolymers with tunable block sequences will advance the development of functional block copolymers.

Abstract

Multicomponent supramolecular block copolymers (BCPs) have attracted much attention due to their potential functionalities, but examples of three-component supramolecular BCPs are rare. Herein, we report the synthesis of three-component multiblock 1D supramolecular copolymers of Ir(III) complexes 13 by a sequential seeded supramolecular polymerization approach. Precise control over the kinetically trapped species via the pathway complexity of the monomers is the key to the successful synthesis of BCPs with up to 9 blocks. Furthermore, 5-block BCPs with different sequences could be synthesized by changing the addition order of the kinetic species during a sequentially seeded process. The corresponding heterogeneous nucleation-elongation process has been confirmed by the UV/Vis absorption spectra, and each segment of the multiblock copolymers could be characterized by both TEM and SEM. Interestingly, the energy transfer leads to weakened emission of 1-terminated and enhanced emission of 3-terminated BCPs. This study will be an important step in advancing the synthesis and properties of three-component BCPs.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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