新型分子光开关DASA：合成、性能及功能应用

doi:10.3969/j.issn.1001-1803.2021.05.012

摘要/Abstract

摘要：

DASA （Donor-Acceptor Stenhouse Adducts）是由给体、受体和三烯-烯醇构成的一类新型光开关分子,在吸收可见光后线型的三烯-烯醇可转化为环状结构,相应地该化合物由有色转化为无色。该无色的环状异构体是热力学不稳定的产物,在黑暗环境下能够自发地、可逆地恢复为有色的线型异构体。这一独特的光开关性能使它们在智能材料、生物传感、药物释放、超分子化学、催化科学、表界面技术等许多领域都存在重要潜在应用。利用其光激发前后极性变化的特性来调控材料表面润湿性可以成功应用在微流体体系控制当中,其绿光响应的特性也避免了传统紫外相应光开关分子在药物释放时紫外光对细胞的损伤。本文综述了DASA的合成方法、光控性能及功能化应用,并展望了未来的发展方向。

关键词: 供体-受体斯滕豪斯加合物, 分子光开关, 光致变色, 给体-受体

Abstract:

Donor-Acceptor Stenhouse Adducts （DASA） are a novel type of photoswitchable compounds that consist of donors, acceptors and triene-enol bridges. The triene-enol chain could be destroyed by absorbing visible light, resulting in structural transformation from colored linear structure to the colorless cyclic structure. The colorless cyclic structure could reverse to linear structure in the dark environment through thermal relaxation. Such unique photoswitchable properties impart them great potential in the areas of smart materials, biosensors, drug delivery, supramolecular chemistry, catalysis, and surface technology. They are able to control the microfluidic systems due to the change of polarity after irradiation, and their green-light responsive character can avoid the damage by ultraviolet radiation, which makes them proper drug delivery controller compared to traditional UV-responsive photoswitches. In this review, we have summarized the synthesis, photoswitchable behaviors and functional applications of DASA, and we also point out the future trends in this field.

Key words: Donor-Acceptor Stenhouse Adducts （DASA）, molecular photoswitch, photochromism, donor-acceptor

中图分类号:

O641

闵凡,黄海康,王德琦,楚宗霖. 新型分子光开关DASA：合成、性能及功能应用[J]. 日用化学工业, 2021, 51(5): 443-449.

MIN Fan,HUANG Hai-kang,WANG De-qi,CHU Zong-lin. Novel photoswitchable molecules DASA: synthesis, properties and functional applications[J]. China Surfactant Detergent & Cosmetics, 2021, 51(5): 443-449.

图/表 5

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