Comparative study of multi-walled carbon nanotubes modified by a hydrophilic polymer with different approaches
The multiwalled carbon nanotubes (MWNTs) modified by a hydrophilic polymer were prepared with polymerization and blending approaches. The differences of both modified MWNTs were compared by Fourier transform infrared and Raman spectroscopies, thermogravimetric analysis and transmission electron microscopy.Chemical grafting reaction had occurred between MWNTs and polyvinyl pyrrolidone (PVP) after modification with polymerization and blending approaches. Polymerization modification can graft more PVP on the surface of MWNTs compared with blending modification. Polymerization modification of MWNTs belongs to grafting from approach, while blending modification belongs to grafting to approach. Modified MWNTs exhibit remarkable solubility in water, ethanol and dimethyl formamide.
Nanomaterials Multiwalled carbon nanotubes Modification Polymers Surfaces
Jun Qiu Guojian Wang
School of Materials Science and Engineering,Tongji University,Shanghai 200092,PR China
国际会议
5th East-Asian Polymer Conference(第5届东亚高分子学术研讨会)
上海
英文
172-175
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）