Modification of carbon nanotubes with surface hyperbranched poly (p-chloromethyl stryrene)

作者：Wang Guo Jian^*; Dong Yue; Liu Lin; Xu Qian Wei

来源：Chemical Journal of Chinese Universities, 2007, 28(1): 164-168.

• carbon nanotubes
• hyperbranching
• poly p-chloromethyl stryrene azidization
• chemical modification
• atom transfer radical polymerization

Hyperbranched poly (p-chloromethyl stryrene) (PCMS) was prepared by combining atom transfer radical polymerization(ATRP) and self-condensing vinyl polymerization (SCVP). The branches of the hyperbranched PCMS was ended with halogen atoms, which were transferred into azide groups. Then PCMS was connected to the surface of carbon nanotube by the reaction of azide group with single walled carbon nanotube (SWNT) or multi-walled carbon nanotube(MWNT) and the chemical modification of CNT was realized. The results from FTIR, XPS, Raman spectra and TEM show that PCMS was combined with carbon nanotube by the covalent bond. According to the results of TGA mensuration, the modification density was calculated and it can be confirmed that massive functional groups from hyperbranched polymer is favorable for improving the effect of modification of carbon nanotubes.

• 出版日期2007-1-10
• 单位同济大学