Continuous and Patterned Conducting Polymer Coatings on Diverse Substrates: Rapid Fabrication by Oxidant-Intermediated Surface Polymerization and Application in Flexible Devices
Continuous and Patterned Conducting Polymer Coatings on Diverse Substrates: Rapid Fabrication by Oxidant-Intermediated Surface Polymerization and Application in Flexible Devices
复制标题
不同基材上的连续和图案化导电聚合物涂层：通过氧化剂介导的表面聚合快速制造及其在柔性器件中的应用
DOI：
10.1021/acsami.0c20159
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发表时间：
2021-01-21
影响因子：
9.5
通讯作者：
Bai, Hua
中科院分区：
文献类型：
--
作者：
He, Yuan;Pan, Deng;Bai, Hua
导电聚合物涂层和模式是这些材料在许多实际应用中最重要的形式，但简单有效的方法仍然具有挑战性。在此，我们报道了一种用于在各种衬底上制备导电聚合物涂层和图案的通用氧化剂介导表面聚合（OISP）。通过自旋镀膜、浸渍镀膜或印刷等方法在基片上沉积由密集排列的胶体V2O5中心点nH(2)O纳米线组成的涂层或图案，经原位氧化聚合后转化为导电聚合物。聚合选择性地发生在V2O5中心点nH(2)O涂层上，在平面和弯曲的聚合物、金属和陶瓷基底上以类似电化学聚合的快速反应速率获得高质量的聚吡咯、聚苯胺和聚（3,4-乙烯二氧噻吩）涂层和图案。机理研究表明，该方法依赖于V2O5中心点nH(2)O纳米线优异的可加工性和可成形性，这进一步解释了V2O5中心点nH(2)O纳米线的大长宽比和表面活性。利用氧化剂介导的表面聚合技术，制备了由三个不同导电聚合物组成的柔性气体传感器阵列，并成功地用于区分各种分析物蒸汽。本文开发的方法将为导电聚合物基器件的制造提供有力的工具。
Conducting polymer coatings and patterns are the most important forms of these materials for many practical applications, but a simple and efficient approach to these forms remains challenging. Herein, we report a universal oxidant-intermediated surface polymerization (OISP) for the fabrication of conducting polymer coatings and patterns on various substrates. A coating or pattern composed of densely packed colloidal V2O5 center dot nH(2)O nanowires is deposited on the substrate via spin coating, dip coating, or printing, which is converted into a conducting polymer one after in situ oxidation polymerization. The polymerization occurs selectively on the V2O5 center dot nH(2)O coatings, and high-quality polypyrrole, polyaniline, and poly(3,4-ethylenedioxythiophene) coatings and patterns on planar and curved polymeric, metallic, and ceramic substrates are obtained in a fast reaction rate similar to the electrochemical polymerization. The mechanistic study reveals that the method relies on the excellent processability and formability of V2O5 center dot nH(2)O nanowires, which is further explained by their large aspect ratio and surface activity. A flexible gas sensor array comprising three individual sensors made of different conducting polymers is fabricated using oxidant-intermediated surface polymerization, and it is successfully used to distinguish various analyte vapors. The method developed here will provide a powerful tool for the fabrication of conducting polymer-based devices.