Issue 8, 2024

One-pot asymmetric living copolymerization-induced chiral self-assemblies and circularly polarized luminescence

Abstract

Controlled synthesis of conjugated block polymers enables the optimization of their self-assembly and may lead to distinct optical properties and functionalities. Herein, we report a direct chain extension of one-handed helical poly(acyl methane) with 1-ethynyl-4-iodo-2,5-bis(octyloxy)benzene, affording well-defined π-conjugated poly(acyl methane)-b-poly(phenylene ethynylene) copolymers. Although the distinct monomers are polymerized via different mechanisms, the one-pot copolymerization follows a living polymerization manner, giving the desired optically active block copolymers with controllable molar mass and low distribution. The block copolymerization induced chiral self-assembly simultaneously due to the one-handed helicity of the poly(acyl methane) block, giving spherical nanoparticles, one-handed helices, and chiral micelles with controlled dimensions regarding the composition of the generated copolymers. Interestingly, the chiral assemblies exhibit clear circularly polarized luminescence with tunable handedness and a high dissymmetric factor.

Graphical abstract: One-pot asymmetric living copolymerization-induced chiral self-assemblies and circularly polarized luminescence

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Article information

Article type
Edge Article
Submitted
22 Nov 2023
Accepted
12 Dec 2023
First published
22 Jan 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 2946-2953

One-pot asymmetric living copolymerization-induced chiral self-assemblies and circularly polarized luminescence

R. Gao, S. Li, B. Liu, Z. Chen, N. Liu, L. Zhou and Z. Wu, Chem. Sci., 2024, 15, 2946 DOI: 10.1039/D3SC06242B

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