Ferrocene-Containing Inverse Opals by Melt-Shear Organization of Core/Shell Particles.
Ferrocene-Containing Inverse Opals by Melt-Shear Organization of Core/Shell Particles.
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DOI：
10.1002/marc.201800428
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发表时间：
2018-07
影响因子：
4.6
通讯作者：
T. Winter;Xiao Su;T. A. Hatton;M. Gallei
中科院分区：
文献类型：
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作者：
T. Winter;Xiao Su;T. A. Hatton;M. Gallei
在这项工作中，制备氧化还原响应的弹性体反蛋白石薄膜具有可切换的结构颜色的报告。原始的核/壳颗粒结构由具有金属聚合物壳的二氧化硅核组成，所述金属聚合物壳是通过接种和逐步乳液聚合方案合成的与甲基丙烯酸正丁酯（PFcMA-co-PnBuMA）共聚的聚（2-（甲基丙烯酰氧基）乙基二茂铁羧酸酯）（PFcMA）。这种定制的无机核/混合有机壳结构导致单分散颗粒，然后使其经受所谓的熔体剪切组织技术。在交联反应和核心颗粒去除后，由于含金属聚合物的基质内的有序空隙，获得了生动的结构颜色。此外，通过添加化学氧化剂和还原剂以及通过循环伏安法研究显示氧化还原响应性，从而揭示了表面润湿性的变化和结构反射颜色的变化。在此，所描述的一锅法制备含金属聚合物的核/壳杂化颗粒的策略和熔融剪切有序化技术的应用为新型氧化还原响应性多孔蛋白石膜铺平了道路，该膜有望成为远程可切换传感器或电化学吸附剂领域中有前途的材料。
In this work, the preparation of redox-responsive elastomeric inverse opal films featuring switchable structural colors is reported. The pristine core/shell particle architecture consists of a silica core having a metallopolymer shell, that is, poly(2-(methacryloyloxy)ethyl ferrocene carboxylate) (PFcMA) copolymerized with n-butyl methacrylate (PFcMA-co-PnBuMA) synthesized via seeded and stepwise emulsion polymerization protocols. This tailor-made, inorganic core/hybrid organic shell architecture leads to monodisperse particles, which were then subjected to the so-called melt-shear organization technique. After a cross-linking reaction and the core particle removal, vivid structural colors are obtained due to the well-ordered voids within the metallopolymer-containing matrix. In addition, redox responsiveness is shown by the addition of chemical oxidation and reducing agents as well as by cyclic voltammetry studies, thus revealing both a change of surface wettability and a change of the structural reflection colors. Herein, the described one-pot strategies for the preparation of metallopolymer-containing core/shell hybrid particles and application of the melt-shear ordering technique paves the way to novel redox-responsive porous opal films, which are expected to be promising materials in the field of remote-switchable sensors or electrochemical adsorbents.