Synthesis and reversible thermochromic behavior of diketopyrrolopyrrole dyes

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-03-10 DOI:10.1016/j.dyepig.2025.112753

Hyungkyu Moon , T. Sheshashena Reddy , Myung-Seok Choi

引用次数: 0

Abstract

The development of reversible thermochromic dyes without leuco dyes or bisphenol presents an ongoing challenge. In this study, reversible five thermochromic diketopyrrolopyrrole (DPP) dyes were synthesized and characterized (DPP1–5). The optical and thermal properties of the DPP dyes were investigated, and DPP dye microcapsules were also prepared and characterized. We first prepared and characterized microcapsules of DPP dyes and investigated their thermochromic properties. The effect of the phenyl or thiophene substituents attached to the DPP on the thermochromism of the dye was also investigated. Phenyl–based microcapsules DPP1–3 showed a slight color change from deep orange to light yellow upon gradual heating from 30 to 60 °C, whereas thiophene–based DPP dye microcapsules exhibited pronounced color changes from blue to red upon a gradual temperature increase from 30 to 60 °C.

Abstract Image

查看原文本刊更多论文

二酮吡咯吡咯染料的合成及其可逆热致变色性能

不含无色染料或双酚的可逆热致变色染料的开发是一个持续的挑战。本研究合成了5种可逆的热致变色双酮吡咯（DPP）染料（DPP1-5）并进行了表征。研究了DPP染料的光学和热性能，制备了DPP染料微胶囊并对其进行了表征。首先制备并表征了DPP染料微胶囊，并对其热致变色性能进行了研究。研究了苯基或噻吩取代基对DPP染料热致变色性能的影响。苯基DPP1-3微胶囊在30 ~ 60℃逐渐升温时，呈现出由深橙色到淡黄色的轻微变色，而噻吩基DPP染料微胶囊在30 ~ 60℃逐渐升温时，呈现出由蓝色到红色的明显变色。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.