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首页> 外文期刊>Advanced Functional Materials >Molecular or Nanoscale Structures? The Deciding Factor of Surface Properties on Functionalized Poly(3,4-ethylenedioxythiophene) Nanorod Arrays
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Molecular or Nanoscale Structures? The Deciding Factor of Surface Properties on Functionalized Poly(3,4-ethylenedioxythiophene) Nanorod Arrays

机译：分子或纳米尺度的结构？功能化的聚（3,4-乙撑二氧噻吩）纳米棒阵列表面性能的决定因素

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摘要

Nanostructures of poly(3,4-ethylenedioxythiophene) (PEDOT) are assembled by using an anodic aluminum oxide template directly fabricated on gold-coated silicon wafers. Inside these templates, PEDOT and hydroxy functionalized PEDOT form tubes. On the other hand, alkyl- and perfluoro-functionalized PEDOTs assembled as nanorods. This approach allows a platform to understand the molecular and nanostructural effect on the surface wettability of these materials. In the water/air interface, the contact angle of water droplet (CA_(water)) for the smooth alkyl-functionalized PEDOT films increases when alkyl chain gets longer. In contrast, the contact angle reachs saturation at 130° with alkyl chain longer than ethyl in assembled nanorod arrays. It remains the same even in the case of perfluoro-functionalized PEDOT. Moreover, ethyl-functionalized PEDOT (PEDOT-C2) nanorods displays superoleophilicity and the oil deoplet cannot stay on the film in water. Based on the wettability studies, it is concluded that the nanostructures contribute predominantly for the surface wettability of these nanomaterials when the length of alkyl chain crosses certain threshold.
机译：聚（3,4-乙撑二氧噻吩）（PEDOT）的纳米结构是通过使用直接在镀金硅片上制造的阳极氧化铝模板组装而成的。在这些模板内部，PEDOT和羟基官能化的PEDOT形成管。另一方面，烷基和全氟官能化的PEDOT组装成纳米棒。这种方法使平台可以了解分子和纳米结构对这些材料的表面润湿性的影响。在水/空气界面中，当烷基链变长时，光滑的烷基官能化PEDOT膜的水滴（CA_（水））的接触角增加。相反，在组装好的纳米棒阵列中，烷基角比乙基长，接触角在130°处达到饱和。即使在全氟官能化的PEDOT情况下也是如此。而且，乙基官能化的PEDOT（PEDOT-C2）纳米棒显示出超亲油性，并且油中的去油剂不能留在水中。基于润湿性研究，可以得出结论，当烷基链的长度超过一定阈值时，纳米结构主要是这些纳米材料的表面润湿性的贡献。

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  • 来源
    《Advanced Functional Materials》 |2013年第25期|3212-3219|共8页
  • 作者

    Hsing-An Lin; Shyh-Chyang Luo; Bo Zhu; Chi Chen; Yoshiro Yamashita; Hsiao-hua Yu;

  • 作者单位

    Yu Initiative Research Unit RIKEN Advanced Science Institute 2-1 Hirosawa, Wako, Saitama 351-0198, Japan,Department of Electronic Chemistry Interdisciplinary Graduate School of Science and Engineering Tokyo Institute of Technology Nagatsuta, Midori-ku, Yokohama 226-8502, Japan;

    Yu Initiative Research Unit RIKEN Advanced Science Institute 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Yu Initiative Research Unit RIKEN Advanced Science Institute 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Nanophotonics Laboratory RIKEN Advanced Science Institute 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Department of Electronic Chemistry Interdisciplinary Graduate School of Science and Engineering Tokyo Institute of Technology Nagatsuta, Midori-ku, Yokohama 226-8502, Japan;

    Yu Initiative Research Unit RIKEN Advanced Science Institute 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

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