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Allylamine PECVD Modification of PDMS as Simple Method to Obtain Conductive Flexible Polypyrrole Thin Films

机译:PDMS的烯丙胺PECVD改性作为获得导电柔性聚吡咯薄膜的简单方法

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摘要

In this paper, we report a one-step method to obtain conductive polypyrrole thin films on flexible substrates. To do this, substrates were modified through allylamine plasma grafting to create a high amount of reactive amine groups on PDMS surface. These groups are used during polypyrrole particle synthesis as anchoring points to immobilize the polymeric chains on the substrate during polymerization. Surface morphology of polypyrrole thin films are modified, tailoring the polyelectrolyte used in the polypyrrole synthesis obtaining different shapes of nanoparticles that conform to the film. Depending on the polyelectrolyte molecular weight, the shape of polypyrrole particles go from globular (500 nm diameter) to a more constructed and elongated shape. The films obtained with this methodology reflected great stability under simple bending as well as good conductivity values (between 2.2 ± 0.7 S/m to 5.6 ± 0.2 S/cm).
机译:在本文中,我们报告了一种在柔性基板上获得导电聚吡咯薄膜的一步法。为此,通过烯丙基胺等离子体接枝对底物进行修饰,以在PDMS表面上产生大量的反应性胺基。这些基团在聚吡咯颗粒合成过程中用作锚定点,以在聚合过程中将聚合物链固定在基质上。修改了聚吡咯薄膜的表面形态,以定制聚吡咯合成中使用的聚电解质,以获得与该膜相符的不同形状的纳米粒子。取决于聚电解质的分子量,聚吡咯颗粒的形状从球形(直径为500 nm)变为更结构化和细长的形状。用这种方法获得的薄膜在简单弯曲和良好的电导率值(2.2±0.7 S / m至5.6±0.2 S / cm之间)下表现出很高的稳定性。

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