Fuzzy Nanoassembly of Polyelectrolyte and Layered Clay Multicomposite toward a Reliable Gas Barrier

详细信息    查看全文

• 作者：Jin Hwan Choi ; Young Wook Park ; Tae Hyun Park ; Eun Ho Song ; Hyun Jun Lee ; Hakkoo Kim ; Se Joong Shin ; Vincent Lau Chun Fai ; Byeong-Kwon Ju
• 刊名：Langmuir
• 出版年：2012
• 出版时间：May 1, 2012
• 年：2012
• 卷：28
• 期：17
• 页码：6826-6831
• 全文大小：419K
• 年卷期：v.28,no.17(May 1, 2012)
• ISSN：1520-5827

文摘

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.