Babaa M R, Bantignies J L, Alvarez L, Parent P, Le Normand F, Gulas M, Mane Mane J, Poncharal P, Doyle B P
Laboratoire des Colloïdes Verres et Nanomatériaux, Université Montpellier II, cc026, Place Eugène Bataillon, 34095 Montpellier, France.
J Nanosci Nanotechnol. 2007 Oct;7(10):3463-7. doi: 10.1166/jnn.2007.816.
Functionalization of multi-walled carbon nanotubes (MWNTs) surface by sulfonated poly (ether ether ketone) SPEEK chains using a direct attachment reaction was investigated. A two step method was performed. MWNTs were oxidized by a nitric acid treatment to generate carboxyl groups on their surface. The grafting reaction of sulfonated groups of SPEEK with carboxyl groups present on the surface of oxidized MWNTs readily proceeds by using hexane diamine as an interlinking molecule. Transmission electron microscopy (TEM) shows that tubes are wrapped by polymer chains. Near edge X-ray absorption fine structure spectroscopy (NEXAFS) at the C K-edge, O K-edge, and N K-edge and X-ray photoelectron spectroscopy (XPS) were used to give evidence of covalent functionalization of MWNTs by SPEEK macromolecules.
研究了通过直接连接反应，用磺化聚醚醚酮（SPEEK）链对多壁碳纳米管（MWNTs）表面进行功能化。采用两步法。通过硝酸处理将MWNTs氧化，以在其表面生成羧基。以己二胺作为连接分子，SPEEK的磺化基团与氧化后的MWNTs表面存在的羧基的接枝反应很容易进行。透射电子显微镜（TEM）显示碳纳米管被聚合物链包裹。利用C K边、O K边和N K边的近边X射线吸收精细结构光谱（NEXAFS）以及X射线光电子能谱（XPS）来证明MWNTs被SPEEK大分子共价功能化。
