Carbonization of polyacrylonitrile in a two-dimensional space between montmorillonite lamellae

✍ Scribed by Naohiro Sonobe; Takashi Kyotani; Akira Tomita

• Book ID: 102999103
• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 869 KB
• Volume: 26
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(88)90158-3

✦ Synopsis

A novel method to prepare a new type of carbon from polyacrylonitrile (PAN) was developed by using the interlamellar opening of montmorillonite (MONT) as a two-dimensional space for carbonization. The complex of MONT with PAN was heat treated at 700°C to carbonize the intercalated PAN. The carbon produced was liberated from MONT by acid treatments. The carbon thus obtained looks like thin films under a scanning electron microscope and is considered to consist of planar macromolecules. Although it has a turbostratic structure at 7oo"C, it becomes a highly oriented graphite upon further heat treatment above 2500°C. An ordinary PAN was also prepared and heat treated for comparison. Key WordsCarbonization, polyacrylonitrile (PAN), montmorillonite. two-dimensional carbon