In-situ Intercalative Polymerization of Conducting Polypyrrole/Montmorillonite Nanocomposites
1.Introduction Recently, studies on intercalation of electrically conducting polymers (CP) into the interlayer spaces of layered clay materials have been an area of great interest 1-3. Montmorillonite, in its pure state, is an inert and electrically insulating material, which shows unique features of marked cation exchange properties, expandability, taking up of water or organic molecules between their interlayer spaces thus increasing the d-spacing of the material 4. However, that by incorporating electrically conducting polymers into the inter-layer galleries, the insulating montmorillonite clay may be converted to an electrically conducting nanocomposite materials 1-4. The main advantages of these nanocomposites are improved thermal and mechanical properties, reduced flammability and better barrier properties comparing to unfilled polymer. Since the interlayers of MMT are filled with sodium cations, the hydrophilic properties are enhanced and lead to a high degree of swelling in water. These phenomena hence provide an effective method for the preparation of intercalated nanocomposites if aqueous systems are used during the intercalation procedure. In this study, we demonstrate a simple and easy route of conducting polypyrrole (Ppy)-montmorillonite (MMT) clay nanocomposites synthesized by the in-situ intercalative polymerization method where conducting Ppy particles are prepared within the interlayer spaces of MMT insulator.
in-situ interactive polypyrrole montrnorillonite nanocomposites
Mohammad Rezaul Karim Jae Hyeung Park Hyun Woo Lee Jung Yeul Kim Eun A Bae Tae Hun Kim Jeong Hyun Yeum
Department of Advanced Organic Materials Science & Engineering,Kyungpook National University,Daegu 7 Department of R&D,Global Challenge Co.Ltd.,Daegu 703-833,Korea
国际会议
江苏镇江
英文
155-156
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）