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Abstract <p>Using the example of anthracene-containing di- and tricyanoethylenes, the effect of an additional cyano group in A-π-D dyes on the optical, electrochemical, and radical polymerization-initiating properties has been demonstrated. It has been shown that the transition from the di- to the tricyanoethylene derivative leads to a shift in the reduction potential by 0.47 V to the anodic region, a bathochromic shift of the long-wave absorption band from λ<sub>max</sub> = 427 nm to λ<sub>max</sub> = 525 nm in acetonitrile, and a more than fivefold increase in the initiation efficiency (maximum rate) of polymerization of dimethacrylate OCM-2 under irradiation with LED 405 nm light.</p>

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Anthracene-Containing Di- and Tricyanoethylenes as Photoinitiators of Free Radical Photopolymerization

  • 期刊论文

  • 发表日期：

    2025年8月6日

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  • E. R. Zhiganshina,
  • T. S. Lyubova,
  • S. A. Lermontova,
  • A. E. Tarakanova,
  • L. G. Klapshina,
  • S. A. Chesnokov,
  • M. V. Arsenyev

摘要

Abstract

Using the example of anthracene-containing di- and tricyanoethylenes, the effect of an additional cyano group in A-π-D dyes on the optical, electrochemical, and radical polymerization-initiating properties has been demonstrated. It has been shown that the transition from the di- to the tricyanoethylene derivative leads to a shift in the reduction potential by 0.47 V to the anodic region, a bathochromic shift of the long-wave absorption band from λmax = 427 nm to λmax = 525 nm in acetonitrile, and a more than fivefold increase in the initiation efficiency (maximum rate) of polymerization of dimethacrylate OCM-2 under irradiation with LED 405 nm light.