螺旋星形底丛聚合物：从可控合成到可调光致发光和圆极化发光

IF 5.1 Q1 POLYMER SCIENCE

ACS Macro Letters Pub Date : 2024-10-08 DOI:10.1021/acsmacrolett.4c00508

Shi-Yi Li, Bing-Hui Duan, Na Liu, Jing Luo, Zheng Chen, Zong-Quan Wu

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引用次数: 0

摘要

受控合成具有可调拓扑结构的星形底丛聚合物是一项挑战。然而，这类材料可能会表现出与众不同的光致发光特性。底丛聚合物由于其聚集侧链而具有聚合诱导发射（PIE）特性，而聚集诱导发射（AIE）也是一种独特的发光特性。在这项工作中，我们制备了多种高活性炔钯催化剂，并聚合了含有可聚合苯基异氰基团作为端基的聚(L/D-乳酸)大单体，从而获得了多种拓扑结构的瓶丛聚合物，其分子量可控，分子量分布窄。以四苯基乙烯（TPE）单元为核心的底丛聚合物具有可调的光致发光和圆偏振发光特性。我们认为，这些特性是由于 TPE 单元独特的 AIE 特性与底丛聚合物的 PIE 特性相结合而产生的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Helical Star-Shaped Bottlebrush Polymers: From Controlled Synthesis to Tunable Photoluminescence and Circularly Polarized Luminescence

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Helical Star-Shaped Bottlebrush Polymers: From Controlled Synthesis to Tunable Photoluminescence and Circularly Polarized Luminescence

The controlled synthesis of star-shaped bottlebrush polymers with tunable topologies is a challenge. However, such materials may exhibit distinct photoluminescence properties. Bottlebrush polymers have polymerization-induced emission (PIE) properties due to their aggregated side chains, and aggregation-induced emission (AIE) is also a unique luminescent property. In this work, we prepared a variety of highly active alkyne Pd catalysts and polymerized poly(L/D-lactic acid) macromonomers containing polymerizable phenylisocyanide groups as end groups to obtain a variety of topologically structured bottlebrush polymers with controllable molecular weights and narrow molecular weight distributions. Bottlebrush polymers with tetraphenyl ethylene (TPE) units as the core exhibit tunable photoluminescence and circularly polarized luminescence properties. We propose that such properties are due to the unique AIE characteristics of the TPE unit combined with the PIE characteristics of the bottlebrush polymer.

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来源期刊

ACS Macro Letters 化学-

CiteScore

10.40

自引率

3.40%

发文量

209

审稿时长

1 months

期刊介绍： ACS Macro Letters publishes research in all areas of contemporary soft matter science in which macromolecules play a key role, including nanotechnology, self-assembly, supramolecular chemistry, biomaterials, energy generation and storage, and renewable/sustainable materials. Submissions to ACS Macro Letters should justify clearly the rapid disclosure of the key elements of the study. The scope of the journal includes high-impact research of broad interest in all areas of polymer science and engineering, including cross-disciplinary research that interfaces with polymer science. With the launch of ACS Macro Letters, all Communications that were formerly published in Macromolecules and Biomacromolecules will be published as Letters in ACS Macro Letters.