Tailoring Polymer Coatings and Grafting Structures for Photoswitchable Ionic Transport in Solid-State Nanochannels

IF 3.3 3区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Yi-Fan Chen, Vaishali Pruthi, Yu-Chun Liu, Cheng-Yeh Yang, Lin-Ruei Lee, Ming-Hsuan Chang, Chun-Chi Chang, Patrick Théato, Jiun-Tai Chen
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引用次数: 0

Abstract

Photoresponsive ion nanochannels have gained significant attention for their ability to regulate ionic transport in response to external stimuli. The potential of molecular and polymeric architectures in the nanochannels to further enhance and modulate these behaviors, however, remains underexplored. In this work, we explore the integration of spiropyran-based polymers into anodic aluminum oxide (AAO) nanochannels, resulting in tailored photoresponsive behaviors. Spiropyran undergoes reversible ring-opening isomerization upon UV irradiation, which leads to changes in the packing and polarity of polymer chains within the nanochannels. The polySp-coated and polySp-grafted AAO systems, fabricated via solution wetting and surface-initiated atom transfer radical polymerization (SI-ATRP), exhibit unique macroscopic and microscopic responses, including reversible color changes, wettability adjustments, and modulation of ion transport under UV and visible light. These findings demonstrate the potential of spiropyran-functionalized nanochannels for applications in optical information storage, photogated materials, and sensors. By manipulating molecular architecture and nanoconfinement, this work paves the way for the design of next-generation photoswitchable systems with enhanced multifunctionality.

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在固态纳米通道中裁剪聚合物涂层和接枝结构的光开关离子传输。
光响应性离子纳米通道因其在外界刺激下调节离子传输的能力而受到广泛关注。然而,分子和聚合物结构在纳米通道中进一步增强和调节这些行为的潜力仍未得到充分探索。在这项工作中,我们探索了将螺旋吡喃基聚合物整合到阳极氧化铝(AAO)纳米通道中,从而产生定制的光响应行为。螺旋吡喃在紫外线照射下发生可逆开环异构化,导致纳米通道内聚合物链的排列和极性发生变化。通过溶液润湿和表面引发原子转移自由基聚合(SI-ATRP)制备的聚sp包覆和接枝的AAO体系表现出独特的宏观和微观反应,包括可逆的颜色变化、润湿性调节以及紫外线和可见光下离子传输的调制。这些发现证明了螺吡喃功能化纳米通道在光学信息存储、光控材料和传感器方面的应用潜力。通过控制分子结构和纳米限制,这项工作为设计具有增强多功能的下一代光开关系统铺平了道路。
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来源期刊
Chemistry - An Asian Journal
Chemistry - An Asian Journal 化学-化学综合
CiteScore
7.00
自引率
2.40%
发文量
535
审稿时长
1.3 months
期刊介绍: Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics. Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews. A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal. Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).
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