Regio- and sequence-controlled conjugated topological oligomers and polymers via boronate-tag assisted solution-phase strategy

Chaoran Xu, Congze He, Ning Li, Shicheng Yang, Yuxuan Du, Krzysztof Matyjaszewski () and Xiangcheng Pan ()
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Chaoran Xu: Fudan University
Congze He: Fudan University
Ning Li: Fudan University
Shicheng Yang: Fudan University
Yuxuan Du: Fudan University
Krzysztof Matyjaszewski: Carnegie Mellon University
Xiangcheng Pan: Fudan University

Nature Communications, 2021, vol. 12, issue 1, 1-10

Abstract: Abstract The regulation of polymer topology and the precise control over the monomer sequence is crucial and challenging in polymer science. Herein, we report an efficient solution-phase synthetic strategy to prepare regio- and sequence-controlled conjugated polymers with topological variations via the usage of methyliminodiacetic acid (MIDA) boronates. Based on the solubility of MIDA boronates and their unusual binary affinity for silica gel, the synthesized regio- and sequence-defined conjugated oligomers can be rapidly purified via precipitation or automatic liquid chromatography. These synthesized discrete oligomers can be used for iterative exponential and sequential growth to obtain linear and dendrimer-like star polymers. Moreover, different topological sequence-controlled conjugated polymers are conveniently prepared from these discrete oligomers via condensation polymerization. By investigating the structure-property relationship of these polymers, we find that the optical properties are strongly influenced by the regiochemistry, which may give inspiration to the design of optoelectronic polymeric materials.

Date: 2021
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DOI: 10.1038/s41467-021-26186-y

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