Study on a novel dye with multi-stimulus response based on spiropyran

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-03-21 DOI:10.1016/j.dyepig.2025.112775

Chao Xu , Zihang Qiao , Jiarong Niu , Wenyu Wang , Jin Xin

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引用次数: 0

Abstract

Stimuli-responsive molecules have attracted attention for a wide range of applications in many functional materials. Spiropyrans, as typical stimuli-responsive molecules, require a certain degree of conformational freedom to guarantee reversible isomerization, which is difficult to be ensured in the solid state. Therefore, in this paper, bisphenol fluorene with orthorhombic structure is introduced on the nitrogen atom of spiropyran through a simple esterification reaction, and obtain a novel molecule, SPB, which has light, thermal and acid/base responsive ability. SPB not only maintains excellent responsive properties to light, thermal, and acid/base stimuli in solution state, it but also displays perfect response performance to these stimuli in the powder state and in poly(methyl methacrylate) film. And there are high sensitivity, high color contrast and high emission contrast between open- and close-ring structure. In addition, SPB has more excellent reversibility and thermal stability, and it remain responsive ability after 40 reversible cycles. SPB can be used for UV printing and anti-counterfeiting materials. With this simple and rational structural design strategy, more liquid\solid stimulus responsive materials could be produced.

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基于螺吡喃的新型多刺激反应染料研究

刺激响应分子在许多功能材料中的广泛应用引起了人们的关注。螺吡喃类化合物作为典型的刺激响应分子，需要一定的构象自由度来保证可逆异构化，而这在固体状态下很难保证。因此，本文通过简单的酯化反应，将具有正交结构的双酚芴引入到螺吡喃的氮原子上，得到了具有光、热和酸碱响应能力的新型分子SPB。SPB不仅在溶液状态下对光、热、酸碱刺激保持优异的响应性能，而且在粉末状态和聚甲基丙烯酸甲酯薄膜中对这些刺激也表现出完美的响应性能。并且开环和闭环结构具有高灵敏度、高色彩对比度和高发射对比度的特点。此外，SPB具有更优异的可逆性和热稳定性，在40次可逆循环后仍保持响应能力。SPB可用于UV印刷和防伪材料。通过这种简单合理的结构设计策略，可以生产出更多的液体/固体刺激响应材料。

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

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.