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Water‐dispersible polyaniline‐carbon nanotubes composites with interface covalent bond and their enhanced electrochemical and electrochromic properties
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2020-07-02 , DOI: 10.1002/pen.25463 Yuancheng Wang 1 , Shanxin Xiong 1, 2 , Xiaoqin Wang 1 , Jia Chu 1 , Runlan Zhang 1 , Bohua Wu 1 , Ming Gong 1 , Mengnan Qu 1 , Zhen Li 1 , Zhenming Chen 3
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2020-07-02 , DOI: 10.1002/pen.25463 Yuancheng Wang 1 , Shanxin Xiong 1, 2 , Xiaoqin Wang 1 , Jia Chu 1 , Runlan Zhang 1 , Bohua Wu 1 , Ming Gong 1 , Mengnan Qu 1 , Zhen Li 1 , Zhenming Chen 3
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The water‐dispersible electrochormic nanocomposites, polyaniline (PANI) connected multi‐walled carbon nanotubes (MWCNTs) by covalent bond were synthesized through a grafting polymerization process of aniline monomer with functionalized MWCNTs. N,N′‐dicyclohexylcarbodiimide (DCC) was used as dehydrant for functionalization process of MWCNTs with p‐phenylenediamine (PPD). The transmission electron microscope (TEM), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FT‐IR) were used to study the morphologies, thermal stabilities and chemical structures of the nanocomposites, respectively. The UV‐vis absorbance spectra and cyclic voltammetry behaviors of nanocomposites were tested by UV‐vis spectrometer and electrochemical workstation, respectively. It is shown show that PANI‐MWCNTs nanocomposites not only exhibit good water solubility, but also exhibit excellent film‐forming properties. The results confirm that the π‐π interactions and interfacial covalent bond between PANI and MWCNTs endow PANI‐MWCNTs excellent electrochemical and electrochromic properties. The conductive network composed of PANI and MWCNTs can significantly improve the ion transports, electron conduct and electrochromic performance of PANI. The PANI‐MWCNTs‐0.6% nanocomposite film shows highest optical contrast value (0.78) and shortest response time (3.8 seconds for coloring and 3.2 seconds for bleaching) among neat PANI and PANI‐MWCNTs nanocomposites.
中文翻译：
具有界面共价键的水分散性聚苯胺-碳纳米管复合材料及其增强的电化学和电致变色性能
通过苯胺单体与功能化MWCNT的接枝聚合反应，通过共价键合成了水分散性电致化学纳米复合材料聚苯胺（PANI）连接的多壁碳纳米管（MWCNT）。N，N- '-dicyclohexylcarbodiimide（DCC）作为脱水剂用于与多壁碳纳米管的官能化过程p苯二胺（PPD）。分别使用透射电子显微镜（TEM），扫描电子显微镜（SEM），热重分析（TGA）和傅立叶变换红外光谱（FT-IR）来研究纳米复合材料的形貌，热稳定性和化学结构。分别通过紫外可见光谱仪和电化学工作站测试了纳米复合材料的紫外可见吸收光谱和循环伏安行为。结果表明，PANI-MWCNTs纳米复合材料不仅表现出良好的水溶性，而且表现出优异的成膜性。结果证实，PANI和MWCNT之间的π-π相互作用和界面共价键赋予PANI-MWCNT优异的电化学和电致变色性能。由PANI和MWCNT组成的导电网络可以显着改善PANI的离子传输，电子传导和电致变色性能。在纯PANI和PANI-MWCNTs纳米复合材料中，PANI-MWCNTs-0.6％纳米复合膜显示出最高的光学对比度值（0.78）和最短的响应时间（着色为3.8秒，漂白为3.2秒）。
更新日期：2020-07-02
中文翻译：
具有界面共价键的水分散性聚苯胺-碳纳米管复合材料及其增强的电化学和电致变色性能
通过苯胺单体与功能化MWCNT的接枝聚合反应，通过共价键合成了水分散性电致化学纳米复合材料聚苯胺（PANI）连接的多壁碳纳米管（MWCNT）。N，N- '-dicyclohexylcarbodiimide（DCC）作为脱水剂用于与多壁碳纳米管的官能化过程p苯二胺（PPD）。分别使用透射电子显微镜（TEM），扫描电子显微镜（SEM），热重分析（TGA）和傅立叶变换红外光谱（FT-IR）来研究纳米复合材料的形貌，热稳定性和化学结构。分别通过紫外可见光谱仪和电化学工作站测试了纳米复合材料的紫外可见吸收光谱和循环伏安行为。结果表明，PANI-MWCNTs纳米复合材料不仅表现出良好的水溶性，而且表现出优异的成膜性。结果证实，PANI和MWCNT之间的π-π相互作用和界面共价键赋予PANI-MWCNT优异的电化学和电致变色性能。由PANI和MWCNT组成的导电网络可以显着改善PANI的离子传输，电子传导和电致变色性能。在纯PANI和PANI-MWCNTs纳米复合材料中，PANI-MWCNTs-0.6％纳米复合膜显示出最高的光学对比度值（0.78）和最短的响应时间（着色为3.8秒，漂白为3.2秒）。
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