Display and Nanosystem Laboratory, College of Engineering, Korea University, Seoul, Republic of Korea.
Langmuir. 2012 May 1;28(17):6826-31. doi: 10.1021/la300831p. Epub 2012 Apr 17.
Flexible and transparent gas-diffusion barriers have played an important role in recent years. The present study describes a flexible barrier film with a tailored architecture of cationic polyelectrolytes and clay/polymer nanoassemblies. Highly oriented and well-aligned barrier films were achieved by the consecutive absorption of flexible cationic polymer and anionic montmorillonite platelets. The experimental results showed that the layer-by-layer deposition of oppositely charged thin films containing self-assembled poly(vinyl alcohol) and montmorillonites improved their gas barrier characteristics based on the Ca degradation test, enhancing their optical transparency. This nanostructure, fabricated using a solution process, is useful in many applications, for example, flexible and moisture-free organic electronics. This simple and fast method is suitable for the mass coating of large surface areas, as required in industry.
近年来，灵活透明的气体扩散屏障发挥了重要作用。本研究描述了一种具有定制结构的阳离子聚合物和粘土/聚合物纳米组装体的柔性阻隔膜。通过连续吸收柔性阳离子聚合物和阴离子蒙脱石片，得到了高度取向和排列良好的阻隔膜。实验结果表明，基于 Ca 降解测试，通过层层沉积包含自组装聚乙烯醇和蒙脱石的相反电荷的薄膜，改善了它们的气体阻隔特性，提高了光学透明度。这种使用溶液工艺制造的纳米结构在许多应用中都很有用，例如，灵活且无湿气的有机电子设备。这种简单快速的方法适用于工业中大面积的大规模涂覆。
