光开关表面活性剂--偶氮苯系物的替代品?

IF 3.1 Q2 CHEMISTRY, MULTIDISCIPLINARY ChemSystemsChem Pub Date : 2024-07-29 DOI:10.1002/syst.202400026
Dr. Marek Bekir, Dr. Johannes Gurke, Dr. Martin Reifarth
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引用次数: 0

摘要

光开关表面活性剂具有在光照射下改变表面活性的特性,因此在胶体科学领域引起了极大的兴趣。只需将它们添加到胶体系统中,就可以控制聚电解质、微米级和纳米级颗粒或乳液等。大多数文献实例都集中在偶氮苯或相关系统上,这些系统采用光异构化反应进行切换。其他结构,如螺丙烷,虽然在过去几年中日益受到关注,但其作用次之。在本视角文章中,我们将概述现有的光开关表面活性剂体系。我们探讨了替代光开关较少受到关注的问题,以及基于上述可切换单元的表面活性剂可以带来哪些益处。我们希望通过这篇文章拓宽人们对刺激响应型表面活性剂的认识,并为新型结构的设计提供指导。
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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Photoswitchable Surfactants–Are there Alternatives to Azobenzene-Based Systems?

Owing to their property to alter their surface-activity upon the irradiation with light, photoswitchable surfactants have gained tremendous interest in colloidal science. Their mere addition to a colloidal system allows, e. g., to obtain control over polyelectrolytes, micro- and nanoscale particles or emulsions. Most literature examples focus on azobenzene-based, or related, systems, which employ a photoisomerization reaction for switching. Other structures, such as spiropyrans, play a subordinate role, although they have gained increasing attention over the past few years. In this perspective article, we want to provide an overview about existing systems of photoswitchable surfactants. We address the issue that alternative photoswitches are given less attention, and what benefits surfactants could possess that are based on said switchable units. With our contribution, we want to broaden the view on stimuli-responsive surfactants – and to provide a guideline for the design of novel structures.

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