Visible Light-induced Living Cationic Polymerization Using Boranil Complex as a Robust Photocatalyst.

IF 5.2 Q1 POLYMER SCIENCE

ACS Macro Letters Pub Date : 2025-09-22 DOI:10.1021/acsmacrolett.5c00536

Yun Liao,Shuai Zhou,Xue Yang,Ziwei Yang,Wenya Liu,Zhaohui Li,Saihu Liao

引用次数: 0

Abstract

The development of efficient and robust photocatalysts is critical to achieving photomediated cationic polymerization with good control. Herein, we introduce a novel family of photocatalysts based on the boranil skeleton, which enables a visible-light-mediated cationic polymerization of vinyl ethers under operationally simple conditions, affording polymers with well-controlled molecular weights and low dispersities. Mechanistic experiments and computational studies were conducted to rationalize the catalysis and initiating mechanism, and interestingly, extra activation resulting from the photoinduced opening of boric Lewis acid site was found also operative, enabling the good tolerance of this system to air and moisture. Further application of this photopolymerization method to photocuring and photopatterning is also demonstrated with success.

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以硼腈配合物为强光催化剂的可见光诱导活性阳离子聚合。

开发高效、稳定的光催化剂是实现良好控制的光电阳离子聚合的关键。在此，我们介绍了一种基于硼烷骨架的新型光催化剂家族，它可以在操作简单的条件下实现可见光介导的乙烯醚阳离子聚合，提供分子量控制良好、分散性低的聚合物。通过力学实验和计算研究来合理化催化和启动机制，有趣的是，发现光诱导硼酸位点打开的额外激活也起作用，使该体系对空气和水分具有良好的耐受性。本文还成功地证明了这种光聚合方法在光固化和光制模方面的进一步应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.