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    麦亦勇. 红外驱动的动态褶皱图案:一种实现智能材料表面的有效途径[J]. 功能高分子学报, 2018, 31(4): 302-304. doi: 10.14133/j.cnki.1008-9357.20180430001
    引用本文: 麦亦勇. 红外驱动的动态褶皱图案:一种实现智能材料表面的有效途径[J]. 功能高分子学报, 2018, 31(4): 302-304. doi: 10.14133/j.cnki.1008-9357.20180430001
    MAI Yi-yong. Near-Infrared Light (NIR)-Driven Dynamic Wrinkles: A Facile Alternative to Realize Smart Surface[J]. Journal of Functional Polymers, 2018, 31(4): 302-304. doi: 10.14133/j.cnki.1008-9357.20180430001
    Citation: MAI Yi-yong. Near-Infrared Light (NIR)-Driven Dynamic Wrinkles: A Facile Alternative to Realize Smart Surface[J]. Journal of Functional Polymers, 2018, 31(4): 302-304. doi: 10.14133/j.cnki.1008-9357.20180430001

    红外驱动的动态褶皱图案:一种实现智能材料表面的有效途径

    Near-Infrared Light (NIR)-Driven Dynamic Wrinkles: A Facile Alternative to Realize Smart Surface

    • 摘要: 响应性表面微纳米图案可以通过外界刺激动态调控表面微纳米结构,从而实现对材料表面性能的动态调控。其中,利用材料表面不稳定性构筑褶皱是制备表面微纳米图案的通用方法,然而如何实现微纳米褶皱图案的动态调控仍然面临挑战。上海交通大学姜学松研究团队在刺激响应性高分子表面方面开展的研究工作取得了一系列阶段性成果。最近该团队提出了一种简单、普适的制备具有近红外光响应性的动态微纳米表面褶皱图案的策略,实现了对材料表面微纳米结构的多重刺激响应性调控,为构建智能材料表面开辟了新途径。

       

      Abstract: The responsive micro/nanoscale patterns on the surface whose morphology can be tuned dynamically by environmental stimulus can possibly enable the on-demand control of the surface properties, and provide an important alternative to realize the smart surface. Therefore, responsive patterns have attracted much attention because of a wide range of potential applications in optical devices, responsive microfluidic channels, flexible electronic devices, switchable wettability, and smart display. However, it is still challenging to fabricate responsive patterns with dynamically controlled topographies to realize a smart surface. Recently, Jiang's group first reported a simple yet versatile strategy for the fabrication of near-infrared light (NIR)-responsive dynamic wrinkles by using carbon nanotube (CNT)-containing poly(dimethylsiloxane) (PDMS) elastomer as the substrate for a bilayer system, with different types of functional polymers serving as the top stiff layers. The high photon-to-thermal energy conversion of CNT leads to NIR-controlled thermal expansion of the elastic CNT-PDMS substrate, resulting in dynamic regulation of the applied strain of the bilayer system by the NIR on/off cycle to obtain a reversible wrinkle pattern. The switchable surface topological structures may switch between the wrinkled state and the wrinkle-free state within tens of seconds upon NIR irradiation. The NIR-driven dynamic wrinkle pattern holds promise in potential applications of smart displays, dynamic gratings and light-control electronics, etc.

       

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