Purification and functionalization of single-walled carbon nanotube (SWNT) in a mild polyphosphoric acid

POLY 113

Sang-Wook Han, tariwooks@hanmail.net1, Se-Jin Oh, sejin@chungbuk.ac.kr1, Loon-Seng Tan, Loon-Seng.Tan@afrl.af.mil2, and Jong-Beom Baek, jbbaek@chungbuk.ac.kr1. (1) School of Chemical Engineering, Chungbuk National University, 12 Gaeshin, Heungduk, Cheongju, Chungbuk, 361-763, South Korea, (2) Polymer Branch, AFRL/MLBP, U. S. Air Force Research Laboratory, 2941 P. Street, Suite 1, Wright-Patterson AFB, OH 45433-7750
In an one-pot process, both purification and functionalization of SWNT was accomplished in a mild and less destructive medium in polyphosphoric acid (PPA) with or without additional phosphorous pentoxide (P2O5) at various temperatures 130, 160, and 190°C. Although it was not clear the purification of SWNT was completed, the process was an efficient method to remove persisting metallic impurities in SWNT without or with little damage to the CNT framework and the facile functionalization onto the surface of SWNT. Thus, current method envisions for both purification and functionalization of SWNT in a one pot process.
 

General Papers: Polymers in Nanotechnology
6:00 PM-8:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster

Division of Polymer Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006