Template synthesis and magnetic response of polyaniline/Fe3O4 composite microtubes

✍ Scribed by Shanxin Xiong; Qi Wang; Yinghong Chen

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 393 KB
• Volume: 111
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.29096

✦ Synopsis

Abstract

Template synthesis technique was employed to prepare magnetic polyaniline (PANI)/Fe~3~O~4~ composite microtubes using anodic aluminum oxide (AAO) membrane as template. Magnetic microtubes were obtained through in situ polymerization of aniline in the presence of Fe~3~O~4~ nanoparticles in the microchannels of template. A tubular structure was formed once when aniline was preferentially adsorbed and polymerized on the surface of channels wall. Electron microscope images demonstrated that the shape and size of guest (PANI/Fe~3~O~4~ composite microtubes) were strictly depended on those of the host (template channels). Magnetic force microscopy images showed that the PANI/Fe~3~O~4~ composite microtubes possessed reasonable magnetism and the magnetism distribution of microtubes was regular as distribution of template channels. Moreover, the magnetic response and oriented arrangement of PANI/Fe~3~O~4~ microtubes were fulfilled in the magnetic field. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009