Wei Wang, K. A. Shiral Fernando, Yi Lin, Mohammed J. Meziani, L. Monica Veca, Li Cao, Puyu Zhang, Martin M. Kimani, and Ya-Ping Sun*
JACS 2008, 130, 1415-9
and another paper dealing with solubility issue of nanotubes:
Electronic Interactions and Polymer Effect in the Functionalization and Solvation of Carbon Nanotubes by Pyrene- and Ferrocene-Containing Poly(1-alkyne)s
Wang Zhang Yuan, Yu Mao, Hui Zhao, Jing Zhi Sun,* Hai Peng Xu, Jia Ke Jin,
Qiang Zheng, and Ben Zhong Tang*
Macromolecules 2008, 41, 701-707